PUMP SHUT DOWN DUE TO HIGH BEARING TEMPERATURE AT 2:22 AM. ONCE PERSONNEL WAS ONSITE, THEY IDENTIFIED AND EXTINGUISHED A VERY SMALL FIRE, WHICH WAS CONTAINED UNDER THE SEAL COVER AT 3:50 AM. THE BEARING WAS UNDAMAGED AND DID NOT SHOW SIGNS OF DIRECT HEAT, HOWEVER THE INBOARD PUMP SEAL SHOWED INDICATIONS OF HEAT DAMAGE AND WAS REPLACED ON 12/11/2017. THE UNIT WAS TESTED AND HAS BEEN RETURNED TO SERVICE ON 12/12/2017. THE SEAL IS BEING SENT TO THE MANUFACTURER FOR FURTHER ANALYSIS. NRC WAS INITIALLY NOTIFIED ON 12/11/2017 (NRC # 1199313) AND 48 HOUR UPDATE WAS ALSO PROVIDED (NRC# 1199502).

YES

NO

Yes

33.362982

-83.447904

20180006

2/1/2018

PHMSA

3

12/9/17 8:05

EQUISTAR CHEMICALS, L.P.

TX

Highly Volatile Liquid (such as ethane, butane, propane)

27.67

8944.05509

0

0

2013

EQUIPMENT FAILURE

3RD PARTY CUSTOMER NOTIFIED OPERATOR OF A VAPOR RELEASE COMING FROM OPERATOR'S METER SKID AREA WITHIN CUSTOMER'S FACILITY; OPERATOR DISPATCHED TECHNICIANS TO INVESTIGATE THE REPORTED RELEASE. LOCAL LAW ENFORCEMENT ELECTED TO CLOSE LOCAL ROAD AS A PRECAUTIONARY MEASURE. TECHNICIANS IDENTIFIED SOURCE OF THE RELEASE TO BE A PRODUCT QUALITY ANALYZER SAMPLE SYSTEM, AND BLOCKED-IN THE AFFECTED EQUIPMENT. THE SAMPLE SYSTEM'S PRESSURE REGULATOR FAILED OPEN DUE TO THE COLD WEATHER, CAUSING THE SAMPLE SYSTEM'S RELIEF VALVE TO LIFT AND RELEASE ETHYLENE TO THE ATMOSPHERE. THE AFFECTED PIPELINE AND METER SKID WERE IDLE (NOT FLOWING) AT THE TIME OF THE INCIDENT AND NO SCADA OR CPM LEAK DETECTION ALARMS WERE RECEIVED BY THE CONTROLLER.

YES

NO

Yes

29.041106

-95.366832

20180001

2/1/2018

PHMSA

4

12/4/17 14:30

ENTERPRISE PRODUCTS OPERATING LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

35

2947.294076

0

0

INCORRECT OPERATION

ON 12/4/2017 - OPERATOR WAS SWITCHING CONTROLS ON MOV OF PUMP DISCHARGE VALVE FROM LOCAL TO REMOTE. WHEN SWITCHED TO REMOTE, THE VALVE OPENED CAUSING PRODUCT TO ENTER A SEGMENT OF PIPING THAT HAD NOT BEEN PREPARED FOR RE-COMMISSIONING. PRODUCT VENTED THROUGH A 3/4" BLEEDER VALVE THAT WAS PARTIALLY OPEN. LOGIC ON THE MOV WAS PROGRAMMED TO EXECUTE THE LAST GIVEN COMMAND. LOGIC HAS BEEN RE-PROGRAMED FOR THE MOV TO STAY IN THE CURRENT POSITION THAT IT IS IN WHEN LOCAL/REMOTE SWITCH IS OPERATED. NOTE - TRC CASE # 1687

ON 11/29/2017 AT 15:36 A LOW LUBE OIL PRESSURE ALARM AND AUTOMATIC SHUTDOWN WAS RECEIVED IN THE CONTROL CENTER ON PUMP UNIT 43 AT LIMA STATION. THE STATION OPERATOR WAS NOTIFIED AND INVESTIGATED THE ALARM AND UPON INSPECTION OF THE UNIT FOUND GASOLINE AND LUBE OIL MIX CONTAINED ON THE PUMP BASE. THE CONTROL CENTER AND LOCAL SUPERVISION WERE NOTIFIED OF THE SITUATION AND INITIAL CLEANUP BEGAN WHILE THE LINE REMAINED DOWN. UPON FURTHER INVESTIGATION IT WAS FOUND THAT THE PUMP SEAL ON UNIT 43 HAD FAILED AND WOULD REQUIRE REPLACEMENT AND THE UNIT WAS REMOVED FROM SERVICE. AN ALTERNATE PUMP UNIT WAS AVAILABLE FOR CONTINUED OPERATION OF THE PIPELINE WHICH WAS INITIALLY RESTARTED AT APPROXIMATELY 19:20 ON 11/29/17. AT APPROXIMATELY 03:30 ON 11/30/2017, LOCAL OPERATOR PERSONNEL DISCOVERED THAT PRODUCT HAD MIGRATED FURTHER INTO THE FACILITY THAN INITIALLY IDENTIFIED. CONTROL CENTER WAS NOTIFIED AND THE LINE WAS SHUT DOWN AGAIN WHILE ADDITIONAL INVESTIGATION AND CLEANUP EFFORTS BEGAN. TO ELIMINATE THE POSSIBILITY OF A PROBLEM WITH THE DISCHARGE PIPING A STATIC PRESSURE TEST WAS PERFORMED ON THE PIPING OUTSIDE THE PUMP AND MOTOR UNITS. THE RESULTS OF THE STATIC TEST WERE ACCEPTABLE AND THE LINE WAS RESTARTED AGAIN AT APPROXIMATELY 20:10 ON 11/30/17 WITH THE ALTERNATE PUMP UNIT. IT WAS DETERMINED THAT THE ADDITIONAL VOLUME RELEASED ALSO CAME FROM THE ORIGINAL FAILURE OF THE PUMP SEAL ON UNIT 43. FINAL ESTIMATED VOLUME RELEASED WAS 8 BARRELS. DUE TO THE ADDITIONAL PRODUCT RELEASED, THE MIGRATION OF IT WITHIN THE FACILITY AND ADDITIONAL CLEANUP COSTS IT WAS DETERMINED AT APPROXIMATELY 10:00 ON 11/30/17 THAT TOTAL COSTS FOR THE RELEASE WOULD EXCEED $50,000 AND THE NRC WAS NOTIFIED AT 10:59. REPORT NO. 1198416 WAS ISSUED. REQUIRED 48 HOUR FOLLOW UP TO NRC WAS MADE ON 12/1/17 AND REPORT NO. 1198568 WAS ISSUED. PUMP UNIT 43 WAS INSPECTED AND IT WAS DETERMINED THAT THE SHAFT BEARING HAD WORN ENOUGH TO ALLOW IT TO SHIFT TOWARDS THE OUTBOARD SEAL WHICH INITIALL COMPROMISED THE SEAL. THE COMPROMISED SEAL ALLOWED THE LUBE OIL FOR THE MOTOR TO ESCAPE AND ALSO MIX WITH SHIPPED PRODUCT (GASOLINE) CAUSING INEFFICIENT LUBRICATION OF THE UNIT WHICH FURTHER EXACERBATED THE SEAL TO FAILURE AND ULTIMATELY CAUSED THE LOW PRESSURE ALARM OF THE LUBE OIL SYSTEM AND SHUT DOWN OF THE PUMP UNIT THAT INITIALLY ALERTED OPERATIONS OF THE RELEASE. UNIT 43 WILL BE FULLY INSPECTED AND REPAIRED PRIOR TO RETURNING IT TO SERVICE. ALTERNATE PUMP UNITS AT LIMA HAVE BEEN INSPECTED FOR SIMILAR WEAR WITH NO ADDITIONAL PROBLEMS IDENTIFIED.

AT APPROX. 0700 HRS. 11/27/17 BUCKEYE RECEIVED A CALL FROM THE FACILITY OWNER STATING THAT WHILE THEY WERE PERFORMING ROUNDS THEY DISCOVERED STAINED STONE AND BELIEVED THERE WAS A LEAK ON THEIR PROPERTY BUT THE SOURCE WAS UNKNOWN. ALL INTERNAL NOTIFICATIONS WERE CONDUCTED. BUCKEYE PERSONNEL ARRIVED ON SITE AT 0830 HRS., UPON ARRIVAL SHELL HAD A VACUUM TRUCK AND SMALL CREW WHO HAD ALL FREE PRODUCT REMOVED. IN AN ABUNDANCE OF CAUTION, BUCKEYE PERSONNEL PLACED A CALL TO THE NRC TO REPORT A LEAK WITH THE SOURCE STILL BEING UNKNOWN. THE FACILITY OWNER AND BUCKEYE OPERATIONS BEGAN HAND EXCAVATION TO LOCATE THE SOURCE. EXCAVATION OF LINE SA604PR AND VISUAL EXAMINATION DETERMINED THE SOURCE OF THE SPILL TO BE BUCKEYES LINE. A SECOND CALL WAS MADE TO THE NRC TO PROVIDE AN UPDATE TO THE ORIGINAL REPORT (#1198306) A VISUAL INSPECTION IDENTIFIED A GOUGE FEATURE LOCATED AT THE 11 O'CLOCK POSITION ON THE PIPE. IT APPEARS EXCAVATION EQUIPMENT OR OTHER MECHANICAL DIGGING EQUIPMENT HAD PREVIOUSLY CAUSED DAMAGE TO THE PIPE. A HIGH PRESSURE PIPELINE REPAIR (PLIDCO) CLAMP WAS INSTALLED. THE INVESTIGATION IS ON-GOING.

YES

NO

Yes

40.54894482

-74.26054003

20170415

2/1/2018

PHMSA

7

11/20/17 11:30

KINDER MORGAN UTOPIA LLC

OH

Highly Volatile Liquid (such as ethane, butane, propane)

0

0

0

0

1974

OTHER INCIDENT CAUSE

THIS RELEASE OCCURRED DURING THE COMMISSIONING OF THE NEW UTOPIA PIPELINE. THE LEAK WAS DETECTED ON A SECTION OF PIPE ACQUIRED FROM EDS THAT PREVIOUSLY CARRIED PROPANE, WAS IDLED IN NITROGEN, AND WAS BEING FILLED WITH ETHANE. ON NOVEMBER 20, 2017 A FIELD TECHNICIAN ARRIVED AT LEGACY EDS BLOCK VALVE 61 AND OBSERVED BUBBLES COMING THROUGH THE SOIL THAT WERE VISIBLE DUE TO RECENT RAIN CAUSING PUDDLES IN THE AREA. HYDROCARBONS WERE DETECTED AND THE COMMISSIONING PROCESS WAS HALTED WHILE THE UPSTREAM AND DOWNSTREAM VALVES WERE USED TO ISOLATE THE VALVE SITE. EQUIPMENT WAS BROUGHT IN TO BLOWDOWN/FLARE PRODUCT FROM THE LINE SEGMENT. THE CAUSE AND IMPACT OF THIS RELEASE ARE STILL BEING ASSESSED.

YES

NO

Yes

41.70222

-83.75306

20170427

2/1/2018

PHMSA

8

11/20/17 9:45

KINDER MORGAN UTOPIA LLC

OH

Highly Volatile Liquid (such as ethane, butane, propane)

0

0

0

0

1974

OTHER INCIDENT CAUSE

THIS RELEASE OCCURRED DURING THE COMMISSIONING OF THE NEW UTOPIA PIPELINE. THE LEAK WAS DETECTED ON A SECTION OF PIPE ACQUIRED FROM EDS THAT PREVIOUSLY CARRIED PROPANE, WAS IDLED IN NITROGEN, AND WAS BEING FILLED WITH ETHANE. ON NOVEMBER 20, 2017 A FIELD TECHNICIAN ARRIVED AT LEGACY EDS BLOCK VALVE 113 AND OBSERVED BUBBLES COMING THROUGH THE SOIL THAT WERE VISIBLE DUE TO RECENT RAIN CAUSING PUDDLES IN THE AREA. HYDROCARBONS WERE DETECTED AND THE COMMISSIONING PROCESS WAS HALTED WHILE THE UPSTREAM AND DOWNSTREAM VALVES WERE USED TO ISOLATE THE VALVE SITE. EQUIPMENT WAS BROUGHT IN TO BLOWDOWN/FLARE PRODUCT FROM THE LINE SEGMENT. THE CAUSE AND IMPACT OF THIS RELEASE ARE STILL BEING ASSESSED.

YES

NO

Yes

41.27222

-83.16472

20170426

2/1/2018

PHMSA

9

11/20/17 1:05

EQUISTAR CHEMICALS, L.P.

TX

Highly Volatile Liquid (such as ethane, butane, propane)

9.78

2998.380507

0

0

2015

EQUIPMENT FAILURE

EQUISTAR PIPELINE CONTROL CENTER RECEIVED LEL ALARM AT THE TIVOLI PUMP STATION ON THE CROSS COUNTRY SYSTEM 31 VIDAURI TO PS2 (TIVOLI). THE PUMP STATION EMERGENCY SHUT-DOWN (ESD) ACTIVATED PER DESIGN, THE PUMP STATION VALVES ALIGNED TO BY-PASS THE STATION AND THE PRESSURE WITHIN THE PUMP STATION WAS SENT TO THE FLARE. ON-CALL TECHNICIANS WERE DISPATCHED TO INVESTIGATE THE ALARM AND ESD. AT 1:05AM ON 11/20/2017, THE TECHNICIANS DISCOVERED A 3/8IN STAINLESS STEEL TUBING TO A PRESSURE TRANSMITTER HAD FAILED ON THE PUMP DISCHARGE . THE TUBING WAS REPLACED AND SUBSEQUENTLY THE PUMP STATION WAS BROUGHT BACK ONLINE. THE FAILURE INVESTIGATION IS IN PROGRESS. THE PRELIMINARY CAUSE OF FAILURE APPEARS TO BE HIGH CYCLE FATIGUE OF THE 3/8IN TUBING .

YES

NO

Yes

28.466611

-96.932756

20170414

2/1/2018

PHMSA

10

11/18/17 16:15

KINDER MORGAN UTOPIA LLC

OH

Highly Volatile Liquid (such as ethane, butane, propane)

0

0

0

0

1974

OTHER INCIDENT CAUSE

THIS RELEASE OCCURRED DURING THE COMMISSIONING OF THE NEW UTOPIA PIPELINE. THE LEAK WAS DETECTED ON A SECTION OF PIPE ACQUIRED FROM EDS THAT PREVIOUSLY CARRIED PROPANE, WAS IDLED IN NITROGEN, AND WAS BEING FILLED WITH ETHANE. ON NOVEMBER 18, 2017 A FIELD TECHNICIAN ARRIVED AT LEGACY EDS BLOCK VALVE 87 AND OBSERVED BUBBLES COMING THROUGH THE SOIL THAT WERE VISIBLE DUE TO RECENT RAIN CAUSING PUDDLES IN THE AREA. HYDROCARBONS WERE DETECTED AND THE COMMISSIONING PROCESS WAS HALTED WHILE THE UPSTREAM AND DOWNSTREAM VALVES WERE USED TO ISOLATE THE VALVE SITE. EQUIPMENT WAS BROUGHT IN TO BLOWDOWN/FLARE PRODUCT FROM THE LINE SEGMENT. THE CAUSE AND IMPACT OF THIS RELEASE ARE STILL BEING ASSESSED. 1/4/2018 UPDATE: PART A.10: ESTIMATED VOLUME OF INTENTIONAL AND/OR CONTROLLED RELEASE/BLOWDOWN (BARRELS) REVISED FROM 13,516 BARRELS TO 4,898 BARRELS DUE TO NEW INFORMATION FROM ENGINEERING AND CONTROLS REGARDING PRODUCT MOVEMENT AT THE TIME OF THE INCIDENT.

YES

NO

Yes

41.45722

-83.55669

20170420

2/1/2018

PHMSA

11

11/16/17 5:33

TC OIL PIPELINE OPERATIONS INC

SD

CRUDE OIL

3806

9398610.36

0

0

2008

MATERIAL FAILURE OF PIPE OR WELD

ON 16 NOV, 2017, AT 05:34 CST, A PRESSURE DROP WAS EXPERIENCED ON KEYSTONE APPROXIMATELY 17.4 MILES DOWNSTREAM OF LUDDEN PUMP STATION, RESULTING IN THE PIPELINE BEING SHUT DOWN. AT 09:15, TECHNICIANS CONFIRMED OIL ON THE GROUND. AT 10:13 CST, THE NRC WAS CALLED, AND A REPORT GENERATED (1197446) AND DISTRIBUTED AT 10:26. CONTACT WITH PHMSA ACCIDENT INVESTIGATION DIVISION MADE AT 1025; PHMSA ON SITE FROM 17 TO 28 NOV. PIPELINE WAS SUBSEQUENTLY RESTARTED ON 29 NOV AFTER REPLACEMENT OF FAILED SECTION. METALLURGICAL TESTING BEING PERFORMED BY THE NATIONAL TRANSPORTATION SAFETY BOARD; RESULTS PENDING. REGARDING PART D, 1A., THERE ONE BIRD AND ONE RACCOON WERE LOST.

YES

NO

Yes

45.709444

-97.876944

20170417

2/1/2018

PHMSA

12

11/14/17 10:30

HARVEST PIPELINE COMPANY

TX

CRUDE OIL

50

250519.9965

0

0

CORROSION FAILURE

ON 11/14/2017 AT 9:41 AM LEAK WAS REPORTED BY ANOTHER PIPELINE COMPANY WORKING IN THE AREA. HARVEST PIPELINE CONTROL ROOM SHUTDOWN PIPELINE AND CALLED FIELD PERSONNEL TO INVESTIGATE. FIELD PERSONNEL LOCATED LEAK AND CONFIRMED THAT IT WAS ON PEARSALL PIPELINE AT 10:30 AM. LEAK WAS IDENTIFIED AS INTERNAL CORROSION AT BOTTOM OF PIPE. ESTIMATED THAT 100 BBL'S OF OIL WAS RELEASED AND 50 BBL'S WAS RECOVERED. AS OF 12/13/2017, ALL CONTAMINATED SOIL HAS BEEN REMOVED FROM THE AREA AND THE PIPE WITH THE PINHOLE HAS BEEN REPLACED.

YES

NO

Yes

28.64972222

-99.02666667

20170411

2/1/2018

PHMSA

13

11/14/17 7:38

ROSE ROCK MIDSTREAM L.P.

KS

CRUDE OIL

0

76848.72817

0

0

2012

CORROSION FAILURE

NOVEMBER 14, 2017 AT 07:38 A CONTRACTOR ARRIVED ONSITE OF THE HUDSON STATION AND NOTICED OIL IN THE TANK DYKE AREA AND ON COMPANY OWNED PROPERTY. THE FIELD PIPELINE OPERATOR ARRIVED ONSITE AND HE CONTACTED THE CONTROL CENTER TO LOCK OUT THE PUMP AT THE HUDSON STATION. THE PIPELINE OPERATOR ISOLATED AND LOCKED OUT ALL INLETS TO THE PUMP STATION BRINGING CRUDE OIL INTO THE TANK. IT WAS DETERMINED THAT THE LEAK WAS IN THE UNDERGROUND TANK INLET PIPING. 851 BARRELS DRAINED FROM THE TANK LEAKING BACK INTO THE TANK PIPING. UPON EXCAVATING THE PIPELINE, INTERNAL CORROSION WAS FOUND AT THE 6 O'CLOCK POSITION OF THE PIPE. THE OIL WAS VACUUMED FROM THE DYKE AREA WITH 560 BBLS OF CRUDE OIL RECOVERED. THE REMAINING BBLS WERE RECOVERED IN THE SOIL. APPROXIMATELY 264 CUBIC YARDS OF SOIL WAS REMOVED FROM LOCATION. THE SOIL IS BEING LAND FARMED AND REMEDIATED AS PER KDHE REQUIREMENTS. PIPELINE REPAIR WAS MADE WITH A CUTOUT AND PIPE REPLACEMENT. THE PIPELINE WAS RETURNED TO SERVICE ON 11/16 AT 17:30 HOURS.

YES

NO

Yes

38.0952582

-98.5821395

20170413

2/1/2018

PHMSA

14

11/10/17 13:50

CRIMSON PIPELINE L.P.

CA

CRUDE OIL

0

134442.7841

0

0

1922

EXCAVATION DAMAGE

SEAL BEACH LINE # 47 TRAVELS THROUGH THE PARKING LOT OF A PRIVATE PROPERTY SERVICING A HOTEL. THE LAND DEVELOPER FOR THIS PROPERTY IS TEARING DOWN THE HOTEL FOR NEW CONSTRUCTION. THE DEVELOPER EMPLOYED A CONTRACTOR TO DEMO THE ADJACENT PARKING LOT WHERE THE SEAL BEACH LINE #47 IS LOCATED. THE CONTRACTOR DID NOT USE THE 811 DIG ALERT SYSTEM BEFORE THEY STARTED THE EXCAVATION. DURING EXCAVATION OF THE PARKING LOT THE CONTRACTOR STRUCK THE SEAL BEACH LINT #47. AT THE TIME OF THE STRIKE THE SEAL BEACH LINE #47 WAS NOT SHIPPING AND HAD 100 PSI OF PRESSURE IN A STEADY STATE. ANOTHER CONTRACTOR ON SITE AT THE TIME OF THE STRIKE CALLED THE CRIMSON CONTROL CENTER TO NOTIFY OF A POTENTIAL STRIKE TO OUR LINE. THE RELEASE WAS CONTAINED IN A ADJACENT BELOW GRADE EXCAVATION ON THE PRIVATE PROPERTY.

YES

NO

Yes

33.757825

-118.111294

20170437

2/1/2018

PHMSA

15

11/9/17 13:45

SEADRIFT PIPELINE CORP

TX

Highly Volatile Liquid (such as ethane, butane, propane)

0.07

49651.09844

0

0

1961

CORROSION FAILURE

A PROPANE LEAK WAS EXPERIENCE FROM THE ELLA BROWNSVILLE PIPELINE. AN AERIAL LEAK SURVEY REPORTED A POTENTIAL LEAK TO OPERATIONS. A PIPELINE TECHNICIAN WAS DISPATCHED TO VALIDATE THE POTENTIAL LEAK. UPON FURTHER INVESTIGATION BY THE PIPELINE TECHNICIAN, AN UNDERGROUND LEAK WAS DISCOVERED. THERE WAS NO FIRE, EXPLOSION, OR LOSS OF PROPERTY. UPON DISCOVERY, THE PIPELINE TECHNICIAN NOTIFIED THE HOUSTON CONTROL CENTER, AND THE LINE SEGMENT WAS ISOLATED. AN 8 MILE SECTION OF LINE WAS CLEARED TO A FLARE IN PREPARATION FOR EXCAVATION, ANALYSIS AND REPAIR OF THE LEAK SITE. IT WAS DETERMINED THAT THE LEAK ORIGINATED FROM A CORROSION PINHOLE, METALLURGICAL ANALYSIS IS STILL PENDING; HOWEVER, IT IS PRESUMED THAT THE CORROSION WAS MICROBIOLOGICALLY INDUCED. TO PREVENT RECURRENCE, APPROXIMATELY 94.5 FEET OF PIPE, INCLUDING THE LEAK SITE, WAS REPLACED WITH NEW PIPE. DECOMMISSION OF THE LINE IS UNDERWAY, WITH A PLAN TO TAKE THE ENTIRE LINE OUT OF SERVICE INDEFINITELY.

ON NOVEMBER 7TH, 2016 AT APPROXIMATELY 8:00 A.M., A ROUTINE INSPECTION BY A BUCKEYE EMPLOYEE IDENTIFIED STAINED SOIL AROUND THE LOOP PROVER AT O'HARE FIELD TERMINAL. NOTIFICATIONS WERE MADE TO SHUT THE INCOMING PIPE LINE DOWN FOR INVESTIGATION. ALL INTERNAL AND EXTERNAL NOTIFICATIONS WERE COMPLETED AND EMERGENCY RESPONSE PROCEDURES WERE INITIATED. FURTHER INVESTIGATION OF THE PROVER IDENTIFIED A LEAKING FLANGE ON A BURIED POSITION DETECTOR SWITCH. THE VOLUME IS ESTIMATED TO BE 10 BARRELS OF JET FUEL RELEASED ONTO COMPANY AND NEIGHBORING PROPERTY. LOCAL RESOURCES AND OSRO RESPONDED TO REMEDIATE THE AFFECTED AREA. METALLURGICAL ANALYSIS OF THE CORRODED AREAS WILL DETERMINE THE ACTUAL TYPE AND CAUSE OF THE CORROSION.

ON NOVEMBER 6, 2017 A SMALL STAIN WAS IDENTIFIED ON SOME GRAVEL INSIDE THE TANK DIKE ADJACENT TO THE BURIED COMMON CENTER SUCTION/FILL LINE OF TANK 673 AT EXPLORER PIPELINE'S HAMMOND, INDIANA TANK FARM. THE TANK IS IN JET FUEL SERVICE. HAND EXCAVATION WAS CONDUCTED, AND IDENTIFIED 2-QUARTS OF JET FUEL. DUE TO POTENTIAL COSTS MEETING OR EXCEEDING $50,000, THE NRC WAS NOTIFIED. THE 48 HOUR NRC NOTIFICATION WAS NUMBER 1195835. HYDROVAC EXCAVATION BEGAN TO EXPOSE THE BURIED COMMON SUCTION/FILL LINE, AND THE TANK SHELL VALVE. A TOTAL OF FOURTEEN 14 GALLONS OF PRODUCT HAVE BEEN IDENTIFIED, AND RECOVERED SINCE NOVEMBER 6, 2017. THE TANK RECENTLY UNDERWENT AN API 653 INTERNAL INSPECTION IN LATE 2016, AND WAS COMPLETED IN EARLY 2017. THE TANK WAS INTERNALLY COATED IN FEBRUARY 2017 FOLLOWING THE API 653. MONTHLY BREAKOUT TANK INSPECTIONS DID NOT IDENTIFY ANY POTENTIAL SOURCES. THE STATION PIPING IS ANSI CLASS 150. THE PRESSURE INDICATED IN THE REPORT AT THE TIME OF DISCOVER IS 137.5 PSI, WHICH IS STATION METER PRESSURE. THE HIGHEST STATION METER PRESSURE THE PREVIOUS 30 DAYS WAS 238.8 PSI ON OCTOBER 11, 2017. THE RELEASE SOURCE STILL BEING INVESTIGATED TO DETERMINE SOURCE.

YES

NO

Yes

41.607567

-87.438794

20170399

2/1/2018

PHMSA

18

11/6/17 12:05

PHILLIPS 66 PIPELINE LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

0.6

71717.48919

0

0

1952

OTHER INCIDENT CAUSE

ON NOVEMBER 6, 2017 AT APPROXIMATELY 12:05 PM (CENTRAL TIME), MAINTENANCE CREWS HAD EXCAVATED A HALF SOLE REPAIR ON MX-30 AT MP 63.5 TO PERFORM AN ENHANCED INTEGRITY EVALUATION. ONCE THE DITCH WAS OPENED, THE CREW DID A SOAP TEST ON THE LINE AND DETERMINED THE LINE WAS WEEPING IN THE AREA OF THE HALF SOLE REPAIR WELD. THE CREW IMMEDIATELY NOTIFIED THE CONTROL CENTER AND THE PIPELINE WAS SHUTDOWN. PLANS WERE MADE AND EXECUTED TO DE-PRESSURE THE LINE AND REPLACE THE SECTION OF THE PIPELINE WHICH WAS WEEPING, ALONG WITH THE HALF SOLE REPAIR WHICH WAS BE EVALUATED. THE NEW SECTION OF PIPE WAS INSTALLED AND THE LINE WAS RESTARTED ON NOV 10, 2017 THE SECTION OF PIPE WHICH WAS REMOVED WAS SENT TO THE P66 LAB IN BARTLESVILLE, OK FOR ANALYSIS ON NOV 10, 2017. TO DATE, THE CAUSE OF THE LEAK HAS NOT BEEN DETERMINED. ONCE THE ANALYSIS IS COMPLETE, THIS REPORT WILL BE UPDATED AND FINALIZED. THIS UPDATED SUPPLEMENTAL REPORT CORRECTED THE LAT LONG COORDINATES OF THE LOCATION AND PROVIDED AN ESTIMATE OF THE REPAIR COSTS (WHICH WAS MISSED ON THE FIRST REPORT. THE INVESTIGATION IS STILL IN PROGRESS ON THIS INCIDENT, SO THIS REPORT WILL BE FINALIZED ONCE THE INVESTIGATION IS COMPLETE.

YES

NO

Yes

31.692

-101.8081

20170389

2/1/2018

PHMSA

19

11/3/17 8:30

DENBURY GULF COAST PIPELINES, LLC

MS

CO2 (CARBON DIOXIDE)

106

94315.3753

0

0

1959

MATERIAL FAILURE OF PIPE OR WELD

ON 11/3/2017 AT 08:30, A DENBURY EMPLOYEE CONDUCTING ROW PATROLS FOR PRODUCTION PIPELINE REPORTED VAPORS AT GROUND LEVEL OVER THE PIPELINE ROW. PIPELINE OPERATIONS WAS PROMPTLY NOTIFIED AND ISOLATION AND SHUTDOWN WAS INITIATED ON ALL DENBURY PIPELINES IN THE AFFECTED ROW. THE AREA SURROUNDING THE LEAK WAS SECURED AND THE RELEASE DID NOT RESULT IN EXPLOSION, FIRE, DEATH, PERSONAL INJURY, SIGNIFICANT PROPERTY DAMAGE, OR POLLUTION OF ANY WATER BODY, AND WAS CONFINED TO THE PIPELINE RIGHT OF WAY. AT 13:30 ON 11/3/2017, THE WEST GWINVILLE CO2 PIPELINE WAS ISOLATED FROM ITS SOURCE (BY CLOSING THE UPSTREAM AND DOWNSTREAM VALVES) AND AT 14:30 BLOW DOWN WAS INITIATED ON THE ISOLATED SEGMENT. ON 11/4/2017 DURING DEPRESSURIZATION, SHALLOW HYDRO-VAC EXCAVATION WAS INITIATED TO ASSIST IN DETERMINING THE SOURCE OF THE LEAK. DEPRESSURIZATION WAS COMPLETED AT 18:30 ON 11/4/2017. UPON MECHANICAL EXCAVATION ON 11/5/2017, A LEAK INDICATION WAS OBSERVED AT 09:30 ON THE WEST GWINVILLE CO2 PIPELINE. AN NRC TELEPHONIC REPORT WAS INITIATED AT 10:29 ON 11/5/2017. A TOTAL LENGTH OF 66 FT OF PIPE WAS EXPOSED, COATING REMOVED, AND EXAMINED BY MAGNETIC PARTICLE INSPECTION. UPON COMPLETION OF EXAMINATION THE AFFECTED PIPELINE WAS REMOVED AND REPLACED WITH PRE-TESTED PIPE ON 11/10/2017. X-RAY OF BOTH WELDS WAS ACCEPTED. THE PIPELINE WAS RESTARTED ON 11/15/2017 AT 10:48 WITHOUT INCIDENT.

YES

NO

Yes

31.5941658

-90.5269165

20170396

2/1/2018

PHMSA

20

10/30/17 15:00

KOCH PIPELINE COMPANY, L.P.

IL

CRUDE OIL

0.3

102551.0974

0

0

1993

OTHER INCIDENT CAUSE

ON OCTOBER 30, 2017 AT 1500, KOCH PIPELINE COMPANY, L.P. ("KPL") PIPELINE OPERATIONS PERSONNEL DISCOVERED A CRUDE OIL RELEASE DURING A STATION WALK THROUGH AT THE HARTFORD STATION. APPROXIMATELY 250 GALLONS OF CRUDE OIL WAS RELEASED FROM A PIN-HOLE NEAR THE BOTTOM OF A NINETY-DEGREE ELBOW NEXT TO STATION VALVE 88. THE PIPELINE WAS SHUT DOWN AT THE TIME OF THE RELEASE. THE OPERATOR PUSHED THE EMERGENCY STOP AND CONTACTED THE PIPELINE CONTROL CENTER TO NOTIFY THEM OF THE RELEASE AND TO ENSURE THE PIPELINE WOULD NOT BE RESTARTED. THE STATION WAS PUT IN LOCAL CONTROL AND LOCK OUT TAG OUT WAS PUT INTO PLACE. LOCAL MAINTENANCE PERSONNEL WERE ALREADY ON SITE TO IDENTIFY AND CONTROL THE RELEASE. ADDITIONAL CONTRACT RESOURCES ARRIVED ON SITE AT APPROXIMATELY 1610. FREE PRODUCT WAS COLLECTED AND THE AREA WAS EXCAVATED TO RECOVER THE CONTAMINATED SOIL. ON 11/3/17, THE SECTION OF PIPE THAT HAD THE HOLE WAS REMOVED AND BLIND FLANGES WERE INSTALLED. POST CONFIRMATORY SAMPLES ARE COMPLETE AND BACKFILL IS SCHEDULED TO BE COMPLETED BY 12/1/17.

YES

NO

Yes

38.819032

-90.091097

20170391

2/1/2018

PHMSA

21

10/26/17 16:42

CRIMSON GULF, LLC

LA

CRUDE OIL

6.2

152394.7524

0

0

2017

OTHER INCIDENT CAUSE

ON OCTOBER, 26 2017 AT APPROXIMATELY 16:30, THE ST JAMES PIPELINE SEGMENT LA-10A IN DONALDSONVILLE, ST JAMES PARISH WAS IN THE PROCESS OF BEING PRESSURED UP FOR A SHIPMENT TO EXXONMOBIL. WHILE IN THE PROCESS OF PRESSURING UP THE LINE, THE CRIMSON CONTROL CENTER NOTICED A PRESSURE DROP FROM 148 PSI TO 28 PSI. A SHUT DOWN WAS INSTITUTED AS A PRECAUTION TO INVESTIGATE FURTHER AS THERE ARE OTHER OPERATOR LINES IN THE AREA. A CRIMSON EMPLOYEE WAS IN THE AREA FOR THE STARTUP OF THE SYSTEM. UPON INVESTIGATION THE CRIMSON EMPLOYEE REPORTED CRUDE OIL ON THE GROUND OUTSIDE THE FENCE OF THE ST. JAMES STATION PROPERTY. REGULATORY NOTIFICATIONS WERE MADE AT 17:05 AND AN OSRO WAS DEPLOYED TO THE LOCATION IN RESPONSE.

YES

NO

Yes

30.01194

-90.86056

20170386

2/1/2018

PHMSA

22

10/25/17 8:37

ENTERPRISE CRUDE PIPELINE LLC

TX

CRUDE OIL

0

254940.9376

0

0

2014

EQUIPMENT FAILURE

ON 10-25-17 LOCAL OPERATING PERSONNEL WERE NOTIFIED BY A LAND OWNER THAT CRUDE OIL WAS LEAKING NEAR OUR BV SITE. UPON ARRIVAL, THE TECHNICIAN DISCOVERED THAT THE PUMP SEAL FOR THE DENSITOMETER HAD FAILED. THE DENSITOMETER LEAK STOPPED ONCE THE DENSITOMETER WAS ISOLATED. A QUARTERLY INSPECTION WILL BE COMPLETED ON THE PUMP TO PREVENT REOCCURRENCE.

YES

NO

Yes

29.57576

-96.399944

20170379

2/1/2018

PHMSA

23

10/25/17 6:55

DELEK CRUDE LOGISTICS, LLC.

TX

CRUDE OIL

3

126183.4837

0

0

CORROSION FAILURE

WHILE PIPELINE WAS OPERATING UNDER NORMAL PARAMETERS, A LEAK WAS DISCOVERED WITH OIL ON THE SURFACE OF THE GROUND BY THE LOCAL OPERATOR PERSONNEL. UPON EXCAVATION AND INSPECTION, A SMALL PIN HOLE WAS FOUND. UPON DISCOVERING THE LEAK, THE PIPELINE WAS SHUTDOWN. THE OIL THAT REACHED THE SURFACE WAS CONTAINED ON SITE IN A CONTAINMENT PIT. HAZWOPER PERSONNEL WERE DISPATCHED TO THE SITE FOR CLEANUP AND REMEDIATION. THE TEXAS RAILROAD COMMISSION WAS NOTIFIED.

YES

NO

Yes

32.23895

-95.02666667

20170385

2/1/2018

PHMSA

24

10/24/17 23:17

ENTERPRISE PRODUCTS OPERATING LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

10

2161.348989

0

0

1978

INCORRECT OPERATION

THE PIPELINE HAD BEEN SHUTDOWN AND PURGED WITH NITROGEN FOR MAINTENANCE. AFTER MAINTENANCE HAD BEEN PERFORMED, A SPOOL PIECE THAT HAD BEEN REMOVED TO HELP DRY THE PIPELINE WAS REINSTALLED ON 10/22/2017. THE FOLLOWING DAY, 10/23/2017, A LEAK TEST UTILIZING NITROGEN WAS PERFORMED ON THE ENTIRE PIPELINE. THE LINE PASSED THE 200 PSIG LEAK TEST. ON 10/24/2017 OPERATIONS BEGAN COMMISSIONING THE PIPELINE AND AT 23:17 A TECHNICIAN OBSERVED A GASKET LEAK AT THE TENNECO VALVE SITE. ON 10/25/2017 AT 0142 IT WAS DETERMINED THE VOLUME OF PRODUCT EXCEEDED 5 GALLONS AND, ALTHOUGH THE EVENT DID NOT MEET NRC REPORTING CRITERIA, THE TRRC WAS NOTIFIED AT 0200. IT WAS FOUND THAT THE FLANGES WERE MISALIGNED AND THE BOLTS WERE NOT PROPERLY TORQUED RESULTING IN A LEAK AROUND THE GASKET. THE GASKET WAS REPLACED AND THE FLANGE WAS PROPERLY ALIGNED AND TORQUED.

ON OCTOBER 23, 2017 A LOCAL RESIDENT REPORTED A PETROLEUM ODOR OFF A PIPELINE RIGHT OF WAY THAT CONTAINED NATURAL GAS AND PETROLEUM PRODUCTS PIPELINES OUTSIDE OF HOUSTON, TEXAS. EXPLORER PIPELINE TRAVERSES THE COMMON PIPELINE ROW. EXPLORER SHUTDOWN THE PIPELINE, AND DISPATCHED LOCAL PERSONNEL WHO IDENTIFIED A SMALL AMOUNT OF FREE STANDING PRODUCT OFF THE PIPELINE. FOLLOWING THE APPROPRIATE INTERNAL AND EXTERNAL NOTIFICATIONS, THE PIPELINE WAS EXCAVATED AND A LEAK FROM THE 28 INCH STOPPLE BLIND FLANGE WAS IDENTIFIED. A PLIDCO FLANGE LEAK CLAMP WAS INSTALLED, AND PREPARATIONS WERE MADE TO CUTOUT THE STOPPLE. THE NRC NOTIFICATIONS REPORTED 42 GALLONS, OR 1 BARREL. THE CURRENT RELEASE IS 38 GALLONS, BUT ADDITIONAL SOIL TESTING IS BEING CONDUCTED. THE FIRST NRC REPORT DATE AND TIME IS LISTED IN THE 7000.1 REPORT. THE 48 HOUR NRC UPDATE IS LISTED UNDER NUMBER 1194033. THE STOPPLE WAS CUTOUT ON NOVEMBER 1, 2017. A THIRD PARTY IS BEING UTILIZED TO CONDUCT A FAILURE ANALYSIS. THE REPORT WAS PENDING AT THE TIME OF THE ORIGINAL SUBMITTAL. ONCE THE FAILURE ANALYSIS IS COMPLETED, A SUPPLEMENTAL REPORT WILL BE SUBMITTED.

YES

NO

Yes

29.814804

-95.186108

20170382

2/1/2018

PHMSA

26

10/22/17 13:29

ENBRIDGE STORAGE (CUSHING) L.L.C.

OK

CRUDE OIL

0

114806.9286

0

0

CORROSION FAILURE

ON OCTOBER 22, 2017 AT 13:29 CDT, A MAINTENANCE TECHNICIAN DISCOVERED CRUDE OIL ON THE GROUND IN THE CUSHING NORTH TERMINAL AT MANIFOLD 153. THE CUSHING CONTROL CENTER WAS NOTIFIED OF THE RELEASE AND APPROPRIATE NOTIFICATIONS WERE MADE. THE SYSTEM WAS SHUTDOWN AT THIS TIME DUE TO NORMAL OPERATIONS, BUT ADDITIONAL ISOLATING STEPS WERE TAKEN TO SECURE THE AREA. THE SOURCE OF THE RELEASE WAS LOCATED ON A 6" BELOW GRADE PIPING NEAR VALVE 153-V-CR3. A CLAMP WAS INSTALLED TO PREVENT ANY FURTHER RELEASE OF PRODUCT AS A TEMPORARY REPAIR. THE RELEASE IS ESTIMATED AT 2 BARRELS AND WAS FULLY CONTAINED ON-SITE. CLEAN-UP WAS COMPLETED ON OCTOBER 23, 2017 AND APPROXIMATELY 9 YARDS OF CONTAMINATED SOIL WAS PROPERLY DISPOSED OF. UT WAS CONDUCTED ON THE PIPE BY AN NDE TECHNICIAN AND THE LEAK CAUSE WAS CONFIRMED TO BE DUE TO INTERNAL CORROSION. THE DAMAGED LINE SEGMENT WAS REMOVED AND A NEW FABRICATION WAS INSTALLED AND PUT BACK IN SERVICE ON NOVEMBER 8, 2017. THE NRC WAS NOTIFIED ON OCTOBER 22, 2017 (#1193991) WHEN IT WAS DETERMINED COSTS WOULD EXCEED THE $50,000 THRESHOLD. THE NRC FOLLOW-UP CALL WAS MADE AT 9:59 CDT ON OCTOBER 24, 2017 (#1194136).

YES

NO

Yes

35.958915

-96.753261

20170377

2/1/2018

PHMSA

27

10/22/17 2:35

ENTERPRISE CRUDE PIPELINE LLC

OK

CRUDE OIL

0

766443.8245

0

0

1997

OTHER INCIDENT CAUSE

ON 10/22/17 AT APPROXIMATELY 02:35 LOCAL OPERATING PERSONNEL DISCOVERED CRUDE OIL ON TOP OF THE SOIL NEAR THE N-1 HEADER. ALL MOVEMENTS WERE SHUTDOWN AND REMAINED SHUTDOWN UNTIL THE SOURCE COULD BE IDENTIFIED. THERE ARE NUMEROUS 3RD PARTY DELIVERY POINTS LOCATED ON THIS HEADER. AT 12:40 OPERATING PERSONNEL IDENTIFIED THE SOURCE OF THE RELEASE TO BE A COMPRESSION FITTING ON THE TUBING FOR THE SAMPLE SYSTEM. THE NRC WAS IMMEDIATELY NOTIFIED AFTER CONFIRMED DISCOVERY AND KNOWLEDGE OF THE COST TO EXCEED $50,000. A FINAL REPORT WILL BE SUBMITTED ONCE THE FAILURE ANALYSIS IS COMPLETE.

ON OCTOBER 20, 2017, MARATHON PIPE LINE FIELD PERSONNEL AND CONTRACT CREWS WERE ON-SITE AND IN THE PROCESS OF RECOMMISSIONING THE LINE FOLLOWING MAINTENANCE, WHEN A RELEASE OCCURRED. A THREAD-O-RING (TOR) COMPLETION PLUG WAS BLOWN OUT AT APPROXIMATELY 4:09 AM CST, WHILE COMPLETING A STATIC-PRESSURE TEST. AT APPROXIMATELY 5:11 AM CST, MPL DETERMINED THIS RELEASE WAS NRC REPORTABLE DUE TO IT STILL BEING ACTIVE AND THEREFORE, ESTIMATED CLEAN-UP AND REPAIR COSTS EXCEEDING THE $50,000 THRESHOLD. WHEN THE RELEASE OCCURRED, CREWS HAD TO RETREAT FROM THE AREA DUE TO SAFETY CONCERNS. ADDITIONALLY, SEVEN RESIDENCES WERE EVACUATED VOLUNTARILY, WHICH INCLUDED APPROXIMATELY TWENTY PEOPLE. THEREFORE, THE TOR ISOLATION VALVE AT THE SOURCE OF THE RELEASE CONTINUED TO BE INACCESSIBLE FOR APPROXIMATELY 12 HOURS, UNTIL PRECAUTIONS COULD BE TAKEN TO MAKE SAFE ENTRY TO THE RELEASE POINT TO CLOSE THE VALVE. TOTAL RELEASE VOLUME IS ESTIMATED AT 1,096 BARRELS. BOTH MPL EMPLOYEES AND CONTRACTOR PERSONNEL WERE DRUG TESTED. MPL EMPLOYEES EXPERIENCED A MISCOMMUNICATION WITH PAPERWORK AT THE CLINIC AND ALCOHOL TESTING WAS NOT COMPLETED. THE CAUSE OF THE RELEASE IS STILL UNDER INVESTIGATION. THE INITIAL NRC REPORT #1193767 (AS NOTED IN PART A, QUESTION 6) WAS MADE ON OCTOBER 20, 2017, AT 5:47 AM CST. THE 48-HOUR UPDATE REPORT, #1193916, WAS MADE ON OCTOBER 21, 2017, AT 1:37 PM CST TO PROVIDE AN UPDATED VOLUME ESTIMATE. 12/14/17: PART A, QUESTION 14 - UPDATED OUR RESPONSE TO "YES". PART D, QUESTION 8E - UPDATED LONG-TERM REMEDIATION COSTS.

YES

NO

Yes

39.161789

-87.798836

20170372

2/1/2018

PHMSA

30

10/18/17 8:52

DCP MIDSTREAM

TX

Highly Volatile Liquid (such as ethane, butane, propane)

0.07

4921.981107

0

0

2017

EQUIPMENT FAILURE

A DCP NGL FIELD TECHNICIAN INTRODUCED A VOLUME OF LIQUID NGL GREATER THAT THE FLARE CAPACITY WHICH IN TURN CAUSED FLAMING LIQUID DROPLETS TO ESCAPE FROM THE TOP OF THE FLARE AND SETTLE AROUND THE BASE IGNITING THE FLAME ARRESTOR WHICH HAD A LEAKING GASKET AND A CARDBOARD BOX. THIS FLARE DESIGN WAS INVESTIGATED AND FOUND TO BE FAULTY AND THREE OTHER DCP STATIONS WERE DETERMINED TO HAVE THE SAME DESIGN AND WERE SHUT IN IMMEDIATELY. DCP WILL CORRECT THE FLARE AND FLAME ARRESTOR DESIGN AND EQUIPMENT USED TO PREVENT THIS FROM HAPPENING AGAIN. TEXAS RRC (RRC REPORT NUMBER 1643).

YES

NO

Yes

28.77662

-99.2499

20170371

2/1/2018

PHMSA

31

10/18/17 8:29

ENBRIDGE ENERGY, LIMITED PARTNERSHIP

IN

CRUDE OIL

0

267280.2754

0

0

2004

CORROSION FAILURE

ON OCTOBER 18, 2017 AT APPROXIMATELY 8:29 AM CDT FIELD PERSONNEL DISCOVERED CRUDE OIL IN STATION DITCH BETWEEN TANKS 70 AND 71. THE EDMONTON CONTROL CENTER WAS CONTACTED AND THE FACILITY WAS SHUT DOWN AT 8:29 AM CDT. THE SOURCE OF THE RELEASE WAS IDENTIFIED TO BE A LEAKING BYPASS TEE ON THE 34" ABOVE GRADE STATION PIPING NEAR BOOSTER MANIFOLD 201. THE LEAKING BYPASS TEE WAS REMOVED AND THE BOOSTER HEADER WAS BLINDED OFF WHERE THE TEE STARTED. THE FACILITY WAS RESTARTED AT 11:37 AM CDT ON OCTOBER 18. FURTHER INVESTIGATION DETERMINED THE CAUSE TO BE INTERNAL CORROSION ON THE GIRTH WELD. APPROXIMATELY 278 YARDS OF CONTAMINATED SOIL WAS REMOVED FROM RELEASE SITE.

YES

NO

Yes

41.516035

-87.449878

20170378

2/1/2018

PHMSA

32

10/16/17 10:15

ENTERPRISE CRUDE PIPELINE LLC

TX

CRUDE OIL

7

1201120.579

0

0

2012

CORROSION FAILURE

ON 10-17-17 ENTERPRISE PERSONNEL RESPONDED TO A REPORT OF OIL STAINED SOIL NEAR THE OTH 13 PIPELINE. AT 10:30 CONFIRMED DISCOVERY WAS MADE AND NOTIFICATIONS WERE IMMEDIATELY PLACED TO THE RRC AND NRC. CLEAN-UP IMMEDIATELY BEGAN UTILIZING VACUUM TRUCKS AND HYDRO EXCAVATORS. ONCE THE PIPE WAS EXPOSED, A PINHOLE WAS FOUND IN THE 6 O'CLOCK POSITION. A PLIDCO CLAMP WAS INSTALLED AND THE PIPELINE RETURNED TO NORMAL OPERATIONS. THIS REPORT WILL BE UPDATED ONCE A FINAL REPAIR IS MADE.

YES

NO

Yes

29.707084

-95.237799

20170365

2/1/2018

PHMSA

33

10/15/17 15:40

PLAINS PIPELINE, L.P.

WY

CRUDE OIL

138

730683.323

0

0

1954

OTHER INCIDENT CAUSE

APPROXIMATELY 2900 BBLS OF CRUDE OIL WERE RELEASED FROM A TANK DISCHARGE LINE. THE CAUSE OF THE FAILURE IS STILL UNDER INVESTIGATION. THIS SEGMENT HAS BEEN SENT TO A LAB TO UNDERGO METALLURGICAL ANALYSIS. A SUPPLEMENTAL REPORT WILL BE SUBMITTED ONCE THE RESULTS ARE RECEIVED. THE NATIONAL RESPONSE CENTER (NRC) WAS NOTIFIED AND ASSIGNED INITIAL REPORT #1193374. A FOLLOW-UP CALL TO THE NRC, ASSIGNED REPORT #1193539.

YES

NO

Yes

42.210771

-104.50558

20170370

2/1/2018

PHMSA

34

10/14/17 6:50

EPL PIPELINE, LLC

CRUDE OIL

3.5

1965034.643

0

0

2006

NATURAL FORCE DAMAGE

NOTIFIED BY OPERATOR OF A LARGE SHEEN ON THE WATER. OPERATORS CURRENTLY INVESTIGATING THE CAUSE OF THE SHEEN. EAST DIVISION. CALL RECIEVED FROM TIM BRAZER: UPDATED FLYOVER WAS CONDUCTED AT 08:00 CDT, AND THE SPILL VOLUME IS NOW AT 147 GALLONS, DIRECTION CURRENT DIMENSIONS: 36, 960 FEET (7 MILES) LENGTH, 5280 FEET (1 MILE) WIDE, 40% COVERAGE, COLORS: 10% BARELY VISIBLE, 80% SILVERY, 10% SLIGHTLY COLORED, MOVING TOWARD THE NORTHWEST. UPDATE: CALLER CONFIRMED SOURCE IS FROM ENERGY XXI AND COMING FROM 10 INCH PIPELINE, CURRENTLY ISOLATED, SHEEN HAS DISSIPATED, LOCATED 1.5 MILES SOUTH OF SOUTH PASS 77A AND SOUTH PASS 57A. PIPELINE SEGMENT# 15008. UPDATED NRC# 119-3261. DIVERS LOCATED SEPARATED PIPE, WHICH IS BELIEVED TO BE CAUSED BY A MUDSLIDE DUE TO THE AFTERMATH OF HURRICANE NATE. PIPELINE WAS FOUND APPROXIMATELY 250 FEET SOUTH OF ORIGINAL KNOWN LOCATION. FOR PART A, QUESTION #9: THE VOLUME CALCULATION FOR HOW MUCH COMMODITY WAS RELEASED IS BASED OFF OF THE ESTIMATED SQUARE FOOTAGE OF THE SHEEN MULTIPLIED BY THE ESTIMATED COVERAGE DETERMINED BY THE APPEARANCE OF THE SHEEN. FOR PART E, QUESTION #1: PLATFORM WAS BROUGHT BACK ONLINE AT ROUGHLY 7 PM ON 10/13. PUMP WAS CYCLED UP TO 100 PSIG FROM 10/13 AT 7:30 PM UNTIL SHUT-IN AT 6:30 AM ON 10/14 WHEN SHEEN WAS SPOTTED. MAX PRESSURE WAS 100 PSIG. SCADA IS NOT INSTALLED ON THIS PIPELINE SECTION, THEREFORE NO SCADA INDICATIONS TO REPORT. FOR PART G2: THE PIPELINE WAS FOUND TO BE BURIED 10-20 FEET BELOW THE MUD LINE ELIMINATING THE INITIAL THOUGHT OF AN ANCHOR DRAG. THIS PIPELINE IS IN A MUDSLIDE AREA AND FOUND TO BE APPROXIMATELY 250 FT SOUTH OF ITS ORIGINAL LOCATION. FURTHER INVESTIGATION IS UNDERWAY & DEVELOPING SCOPE OF WORK FOR REPAIR BASED ON FINAL INVESTIGATION RESULT.

YES

NO

Yes

28.843

-89.354

20170362

2/1/2018

PHMSA

35

10/10/17 17:15

CENTURION PIPELINE L.P.

OK

CRUDE OIL

0

3010076.352

0

0

1948

EXCAVATION DAMAGE

ON OCTOBER 10TH, 2017, A CONTRACTOR WORKING FOR PLAINS ALL AMERICAN PIPELINE (PLAINS) WAS PERFORMING FINAL GRADING OF THE RIGHT-OF-WAY FOLLOWING BACKFILL OF THE PLAINS-CENTURION PIPELINE CROSSING SITE. THE CONTRACTING COMPANY EQUIPMENT OPERATOR, WHO WAS NOT AUTHORIZED TO PERFORM ANY EXCAVATION AT THE SITE, STRUCK THE CENTURION'S 16'' SLAUGHTER TO CUSHING SYSTEM #2 PIPELINE WITH A BULLDOZER. THE SUBSEQUENT PIPELINE STRIKE PUNCTURED THE LINE CAUSING A LOSS ONTO THE RIGHT-OF-WAY APPROXIMATELY 377 BARRELS OF CRUDE OIL. APPROXIMATELY 164 BARRELS OF CRUDE OIL WERE UNRECOVERED, REQUIRING SOIL REMEDIATION. CURRENTLY, THE CONTAMINATED SOIL HAS BEEN REMOVED FROM THE INCIDENT SITE AND REMEDIATION EFFORTS ARE ONGOING. WITH REMEDIATION EFFORTS STILL IN PROGRESS, THE REPORTED COST ESTIMATES REFLECT THE CURRENT TOTAL BUT MAY CHANGE AFTER THIS REPORT IS FILED. ANY SIGNIFICANT CHANGES TO THE COST ESTIMATE WILL BE REPORTED IN A SUPPLEMENTAL REPORT. NRC REPORT NUMBER 1192883 CORRESPONDS TO THE INITIAL TELEPHONIC REPORT FOR THIS ACCIDENT, AND NRC REPORT NUMBER 1193089 CORRESPONDS TO THE 48 HOUR UPDATE REPORT. THE CENTURION PIPELINE WAS CLEARLY AND PROPERLY MARKED BY QUALIFIED CENTURION PERSONNEL, AND THE CONTRACT EXCAVATION PERSONNEL WERE AWARE OF THE LOCATION OF THE LINE. ALL CENTURION POLICIES AND PROCEDURES WERE FOLLOWED. THE PIPELINE WAS PLACED BACK INTO SERVICE AT 2:40 PM ON OCTOBER 12TH, 2017. THERE WERE NO ASSOCIATED INJURIES OR FATALITIES. NO OIL REACHED A WATERWAY AND ENVIRONMENTAL REMEDIATION IS ANTICIPATED TO BE SUCCESSFUL.

YES

NO

Yes

35.92762

-96.76167

20170360

2/1/2018

PHMSA

36

10/10/17 2:46

PERMIAN EXPRESS PARTNERS LLC

LA

CRUDE OIL

0

241435.4537

0

0

1953

OTHER OUTSIDE FORCE DAMAGE

AT APPROXIMATELY 2:46 AM ON 10/10/2017 THE CONTROL CENTER WAS NOTIFIED BY CADDO PARISH, LA SHERIFF OF A PETROLEUM ODOR COMPLAINT IN THE AREA OF FINNEY STATION. CONTROL CENTER NOTIFIED LOCAL OPERATING PERSONNEL AND BEGAN SHUTTING THE STATION AND THE ASSOCIATED PIPELINE SYSTEM DOWN AS A PRECAUTION. THE SYSTEM WAS DOWN BY APPROXIMATELY 3:09 AM. LOCAL OPERATING PERSONNEL ARRIVED ON SITE AT APPROXIMATELY 3:00 AM. THE SHERIFF AND LOCAL FIRE DEPT. WERE ALREADY ON SITE. ADDITIONAL OPERATING PERSONNEL RESPONDED TO THE STATION TO AID IN THE INVESTIGATION OF THE ODOR. AT APPROXIMATELY 4:15 AM, A HOLE IN THE SHELL OF TANK 312 WAS IDENTIFIED. THE HOLE IN THE SHELL WAS LOCATED AT A HEIGHT OF APPROXIMATELY 30. CONTROL CENTER WAS CONTACTED AND THEY BEGAN TO PUMP OUT OF TANK 312 INTO OTHER TANKS AT THE STATION IN ORDER TO GET THE PRODUCT LEVEL BELOW THE HOLE IN THE SHELL TO STOP THE ACTIVE LEAK. THE TANK WAS LOCKED OUT AFTER BEING PUMPED OUT TO A LEVEL BELOW THE HOLE AND CLEAN UP BEGAN. UPON INVESTIGATION THE HOLE IN THE TANK SHELL APPEARED TO HAVE BEEN CAUSED BY A BULLET DUE TO ITS EXTREMELY SYMMETRICAL AND CLEAN NATURE. TSA AND PHMSA WERE NOTIFIED OF THE ACCIDENT. TO DATE, NO PARTY HAS BEEN IDENTIFIED AS A SUSPECT IN THIS MATTER. THE TANK REMAINED LOCKED OUT AND THE STATION WAS RESTARTED AT APPROXIMATELY 19:03 ON 10/10/17. CLEAN UP CONTINUED AND ON 10/13/17 IT WAS DETERMINED THAT ENVIRONMENTAL CLEAN-UP COSTS WOULD CAUSE TOTAL COSTS FOR THE ACCIDENT TO EXCEED $50,000 AND NRC WAS NOTIFIED. REPORT NO. 1193186 WAS ISSUED. REQUIRED 48 HOUR UPDATE WAS PROVIDED TO NRC AND REPORT NO. 1193392 WAS ISSUED. THE HOLE IN THE TANK SHELL WAS REPAIRED ACCORDING TO API 653 STANDARDS BY A QUALIFIED CONTRACTOR AND WAS RETURNED TO SERVICE ON 11/6/2017.

ON 10/3/2017, OREGON, OH PUBLIC WORKS AND FIRE CHIEF NOTIFIED OPERATOR PERSONNEL OF AN ODOR COMPLAINT COMING FROM THE STORM WATER SEWERS IN THE AREA. BETWEEN 10/3 AND 10/8, OPERATOR PERSONNEL INVESTIGATED THE ODOR COMPLAINT. ON 10/8/2017 AT 14:33 HOURS, OPERATOR VERIFIED A PIN-HOLE LEAK IN THE 10" LIMA-TOLEDO PIPELINE (LINE ID 13201). AFTER DISCOVERY OF RELEASE NRC WAS NOTIFIED AT 15:34 LOCAL TIME ON 10/8 AND REPORT NO. 1192655 WAS ISSUED. OPERATOR ASSESSED ADJACENT PIPELINE NEAR POINT OF PINHOLE LEAK, CUT OUT THE SECTION OF FAILED PIPING AND REPLACED WITH NEW PIPING. REQUIRED 48 HOUR UPDATE TO NRC WAS MADE ON 10/10 AND REPORT NO. 1192855 WAS ISSUED. FAILED PIPE HAS BEEN SENT TO 3RD PARTY LABORATORY FOR METALLURGICAL ANALYSIS. 7000-1 REPORT WILL BE SUPPLEMENTED UPON METALLURGICAL ANALYSIS REPORT BEING ISSUED.

YES

NO

Yes

41.63756

-83.44773

20170357

2/1/2018

PHMSA

38

10/3/17 11:08

ENTERPRISE PRODUCTS OPERATING LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

10000

345324.6226

0

0

1981

EXCAVATION DAMAGE

AT APPROXIMATELY 1108 HRS ON TUESDAY, OCTOBER 3, 2017, THE CONTROLLER ON THE MAPL SEMINOLE CONSOLE NOTICED A PRESSURE DROP ON THE SEMINOLE BLUE LINE. SECONDS LATER, HE RECEIVED A CALL FROM A CONTRACTOR ON SITE REPORTING THAT WHILE DOING A LINE CROSSING A LINE WAS STRUCK AND PRODUCT WAS RELEASING. THE CONTROLLER SHUT DOWN THE LINE AND BLOCKED ALL MOV VALVES IN THE AREA. THE PIPELINE WAS PROPERLY LOCATED AND MARKED PER PROCEDURE. ENTERPRISE HAD A REPRESENTATIVE ON SITE DURING THE EXCAVATION. THE CONTRACTOR FAILED TO MAINTAIN PROPER CLEARANCE. THE IMPORTANCE OF MAINTAINING A PROPER TOLERANCE ZONE HAS BEEN COMMUNICATED TO FIELD PERSONNEL. THE DAMAGED SECTION OF PIPE WAS REMOVED AND REPLACED. THE PIPELINE WAS RESTARTED ON 10/8/17.

YES

NO

Yes

31.745631

-100.268643

20170340

2/1/2018

PHMSA

39

10/3/17 9:50

VELOCITY CENTRAL OKLAHOMA PIPELINE, LLC

OK

CRUDE OIL

31.3

1089270.769

0

0

2015

EXCAVATION DAMAGE

WHILE DRILLING A NEW HDD, PARALLEL TO OUR EXISTING PIPELINE, THE DRILL BIT STRUCK THE EXISTING PIPELINE. THE NEW HDD WAS 473FT FROM THE ENTRY POINT AT THE TIME OF THE STIKE. CONDENSATE AND GAS WAS SEEN COMING UP THROUGH THE BORE TO THE RETURN PIT FOR THE HDD OPERATION.

YES

NO

Yes

35.013658

-97.787268

20170355

2/1/2018

PHMSA

40

10/2/17 14:52

PLAINS PIPELINE, L.P.

WY

CRUDE OIL

15

32690.40346

0

0

CORROSION FAILURE

APPROXIMATELY 320 BBLS OF CRUDE OIL WERE RELEASED FROM A FAILED STRAINER, UPSTREAM OF THE CASPER STATION SOUTH BOOSTER. AFTER EXCAVATION, IT WAS DETERMINED THAT THE FAILURE WAS A RESULT OF INTERNAL CORROSION, WHICH HAD CAUSED A PERFORATION OF THE STRAINER HOUSING. THE STRAINER HAS BEEN REMOVED AND THE PIPING BLINDED. ALL OIL WAS CONTAINED WITHIN THE STATIONS BERMED AND DIKED AREA.

YES

NO

Yes

42.851162

-106.356422

20170353

2/1/2018

PHMSA

41

9/28/17 11:00

ROSE ROCK MIDSTREAM L.P.

KS

CRUDE OIL

0

205303.5932

0

0

1934

CORROSION FAILURE

A LAND OWNER CONTACTED THE CONTROL CENTER AT 1055 ON 9/28/2017 INFORMING THE CONTROLLER THERE WAS A LEAK AND OIL WAS ON THE GROUND. THE CONTROLLER CONTACTED THE FIELD OPERATOR AT 1058 AND SHUT IN THE MAINLINE BOOSTER PUMP AT 1101. THE OPERATOR ARRIVED ONSITE AT 1125 AND CONFIRMED OIL ON THE GROUND THREE MILES EAST OF THE CUNNINGHAM STATION. THE OPERATOR ISOLATED THE LEAK BY CLOSING THE GOOSE CREEK VALVE AT 1140. AERIAL PATROL IDENTIFIED THE LEAK AND CONTACTED ROSE ROCK MIDSTREAM AT 1244. THE CONTROL CENTER VERIFIED 45 BBLS SPILLED WITH OVER/SHORT CALCULATIONS. THE PIPELINE WAS CLAMPED AT 1530. THE LEAK OCCURRED AT A ORIGINAL WELD LOCATION IN A LOW SPOT IN THE LINE. THE LEAK WAS A PINHOLE LEAK WHICH HAD NOT BEEN IDENTIFIED ON THE MOST RECENT ILI REPORT. THE LEAK WAS REPAIRED BY CUT OUT AND WAS PUT BACK IN SERVICE ON 10/3/2017 AT 1655. SOIL REMEDIATION WAS PERFORMED WITH 40 / 12 CU LOADS OF IMPACTED SOIL EXCAVATED AND TRANSPORTED TO THE BARTON COUNTY LANDFILL. THE SECTION OF REMOVED PIPE WAS SENT TO DNV METALURGICAL LAB FOR ANALYSIS TO DETERMINE THE ROOT CAUSE OF THE FAILURE. UPON RECEIVING THIS ANALYSIS, A SUPPLEMENTAL REPORT WILL BE COMPLETED.

YES

NO

Yes

37.69283

-98.389093

20170350

2/1/2018

PHMSA

42

9/28/17 9:29

NUSTAR PIPELINE OPERATING PARTNERSHIP L.P.

IA

Highly Volatile Liquid (such as ethane, butane, propane)

0.48

24127.53174

0

0

1970

MATERIAL FAILURE OF PIPE OR WELD

AT 9:29 AM ON 9/28/2017 A FARMER REPORTED AN AMMONIA ODOR COMING FROM HIS CORN FIELD AND NOTIFIED NUSTAR. WHEN THE PIPE WAS UNCOVERED, A PIN HOLE IN THE GIRTH WELD WAS FOUND. THE CUT OUT PIECE OF PIPE WAS SENT FOR METALLURGICAL ANALYSIS.

YES

NO

Yes

43.08949

-93.903342

20170346

2/1/2018

PHMSA

43

9/28/17 6:17

ASCEND PERFORMANCE MATERIALS TEXAS INC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

1369.7

13970173.92

0

0

1976

OTHER INCIDENT CAUSE

AT 06:17 ON 9/28/2017, ASCEND WAS NOTIFIED BY INEOS PIPELINE OF A POSSIBLE AMMONIA LEAK IN THEIR RIGHT-OF-WAY, NEAR THEIR OYSTER CREEK FACILITY IN BRAZORIA COUNTY, TEXAS. AN ASCEND PIPELINE COORDINATOR ARRIVED TO INVESTIGATE AT 07:03. HE VERIFIED THAT THE AMMONIA VAPORS WERE MOST LIKELY COMING THROUGH THE GROUND, FROM ASCEND'S 10-INCH LIQUID ANHYDROUS AMMONIA PIPELINE. THE PIPELINE COORDINATOR DIRECTED THE CONTROL ROOM TO SHUT THE MOTOR-OPERATED VALVE TO STOP THE FLOW OF AMMONIA TO THE PIPELINE. THE VALVE WAS CLOSED AT 08:25 ON 9/28/2017. TO REDUCE PIPELINE PRESSURE, THE ASCEND PLANT FACILITIES CONTINUED TO OPERATE FOR A SHORT TIME UNTIL PIPELINE PRESSURE WAS INSUFFICIENT TO MAINTAIN OPERATIONS. AT THAT TIME, MANUAL VALVES AT VALVE STATIONS (VS) 13 & 14 WERE CLOSED TO ISOLATE THE LEAKING SEGMENT. CONTRACTORS WERE MOBILIZED TO EXPOSE THE LEAKING SEGMENT AND ASSESS THE POSSIBLE INSTALLATION OF A TEMPORARY ENGINEERED LEAK CLAMPING DEVICE. THE ATTEMPT TO INSTALL SUCH A TEMPORARY DEVICE WAS NOT SUCCESSFUL; AND THE EFFORT WAS TERMINATED FOR WORKER PROTECTION PURPOSES. APPROXIMATELY 2-WEEKS OF CONTINUOUS EFFORTS WERE REQUIRED TO COMPLETELY DE-INVENTORY THE SEGMENT WHILE MINIMIZING THE RELEASE TO THE ENVIRONMENT, WHICH EFFORTS WERE COORDINATED WITH TCEQ/EPA PERSONNEL. ONCE ACCOMPLISHED, A TEMPORARY ABOVE-GROUND PIPELINE WAS TIED-IN TO BYPASS THE IMMEDIATE LEAK LOCATION. THE AMMONIA PIPELINE WAS THEN REPACKED AND, FOLLOWING A WALK-DOWN LEAK-CHECK OF THE VS13 TO VS14 SEGMENT, WAS RETURNED TO SERVICE WITH THE BYPASS ON 10/21/2017. THE BYPASS WILL FACILITATE ASCEND'S THOROUGH INVESTIGATION OF THE CAUSE OF THE LEAK, AS WELL AS THE ASSESSMENT OF THE LEAK AREA AND ANY REQUIRED REMEDIATION. THIS PIPELINE WAS ACQUIRED BY ASCEND FROM BUCKEYE PARTNERS LTD. IN 2015. THE MOST RECENT INTEGRITY ASSESSMENT OF THIS PIPELINE SEGMENT WAS COMPLETED BY BUCKEYE, BY MEANS OF AN ECDA IN 2015. SINCE ACQUIRING THE PIPELINE, ASCEND HAS MAINTAINED ALL INTEGRITY MANAGEMENT SYSTEMS IN ACCORDANCE WITH ITS OPERATING AND MAINTENANCE PROCEDURES, AND ITS INTEGRITY MANAGEMENT PLAN, WHICH ARE ALIGNED TO FEDERAL AND TEXAS STATE REQUIREMENTS. THE INVESTIGATION TO DETERMINE THE CAUSE OF THE FAILURE IS CURRENTLY IN PROGRESS. ACCORDINGLY, IT IS PREMATURE TO SPECULATE REGARDING THE CAUSE. PRESENTLY SUSPECTED POTENTIAL DAMAGE MECHANISMS INCLUDE EXTERNAL CORROSION. RECORDS INDICATE EXCELLENT COATING INTEGRITY AND CATHODIC PROTECTION (CP) POTENTIALS AT THE LOCATION; HOWEVER, THERE ARE SEVERAL OTHER PIPELINES, PLUS A CAPPED WELL, IN CLOSE PROXIMITY; AND POSSIBLE CP INTERFERENCE WILL BE INVESTIGATED AS A POTENTIAL CAUSE FACTOR. ADDITIONAL POTENTIAL DAMAGE MECHANISMS TO BE CONSIDERED INCLUDE: PAST EXCAVATION DAMAGE IN THE CROWDED RIGHT-OF-WAY; A/C CORROSION; AND A SLOW-GROWING, MATERIAL-RELATED ISSUE SUCH AS A BUTT WELD DEFECT, SEAM WELD DEFECT OR OTHER MANUFACTURING DEFECT. INTERNAL CORROSION, GROUND MOVEMENT AND INCORRECT OPERATIONS ARE NOT PRESENTLY CONSIDERED CREDIBLE POTENTIAL DAMAGE MECHANISMS.

YES

NO

Yes

29.06948

-95.33939

20170351

2/1/2018

PHMSA

44

9/26/17 6:18

ENERGY TRANSFER COMPANY

TX

Highly Volatile Liquid (such as ethane, butane, propane)

42

1434.349784

0

0

2012

EQUIPMENT FAILURE

AT APPROXIMATELY 0618 HOURS ON TUESDAY, SEPT. 26TH, ENERGY TRANSFER(ETC) LIQUIDS CONTROL RECEIVED A CALL FROM A WEST TEXAS GAS (CUSTOMER) PLANT OPERATOR WHO NOTICED A RELIEF VALVE RELIEVING PRODUCT AT THE ETC METER STATION. LIQUIDS CONTROL THEN CONTACTED FIELD PERSONNEL TO INVESTIGATE. OPERATIONS ARRIVED AT THE SITE AT 0658 HOURS AND FOUND A 1/2" THERMAL RELIEF VALVE ON THE METERING STATION VENTING. HE ISOLATED THE RELIEF VALVE AT 0700 HOURS. THE STATION AND PIPELINE WERE NOT TAKEN OUT OF SERVICE. FURTHER INVESTIGATION CONCLUDED THAT THE RELIEVE VALVE MALFUNCTIONED AND PREMATURELY RELEASED AT 1284 PSIG. WHEN THE STATION FLOW RATE INCREASED. THE RELIEF VALVE DID NOT RESEAT. LIQUIDS CONTROL CONFIRMED PRESSURE ON THE SYSTEM TO BE 1284 PSIG AT THE TIME OF THE RELEASE. A NEW RELIEF VALVE WAS TESTED AND INSTALLED THE SAME DAY. TO PREVENT SIMILAR REOCCURRENCES, LOCAL OPERATIONS TESTED OTHER THERMAL RELIEF VALVES IN IT'S AREA.

YES

NO

Yes

32.21106

-101.93433

20170356

2/1/2018

PHMSA

45

9/24/17 5:36

EXXONMOBIL PRODUCTION COMPANY, A DIVISION OF EXXON MOBIL CORPORATION

WY

CO2 (CARBON DIOXIDE)

28.75

8721.043171

0

0

1986

EQUIPMENT FAILURE

PART H - NARRATIVE DESCRIPTION OF ACCIDENT (SUPPLEMENT TO FORM PHSMA 7000-1) THE DISCHARGE ROVS (2643A/B/C/D) ON THE CO2 SALES COMPRESSORS A, B, C AND D TRIPPED CLOSED DUE TO PT2682 MALFUNCTION, BLOCKING COMPRESSORS OUTLET RESULTING IN SUDDEN PRESSURE INCREASE. THE CONTROL ROOM CALLED I&E TO INVESTIGATE FAILED PT2682 AND CLOSURE OF DISCHARGE ROV'S. THREE I&E TECHS RESPONDED TO CO2 SALES FOLLOWED BY THE I&E TECH FOREMAN. I&E TECH FOREMAN NOTICED SIGNIFICANT MOVEMENT IN THE DISCHARGE PIPING, DIRECTED THE TEAM TO EVACUATE THE AREA TO THE PDC AND CALLED CONTROL ROOM FOR AN E-STOP. CONTROL ROOM INITIATED CONTROLLED SHUTDOWN OF COMPRESSORS A THROUGH D WHICH WAS COMPLETED. DURING THE EVENT, COMPRESSOR DISCHARGE PIPING AND RECYCLE LINES SHOOK DAMAGING A SUPPORT BEAM ON "A" COMPRESSOR DISCHARGE LINE AND BROKE A _ INCH DRAIN VALVE OFF COMPRESSOR "A" RECYCLE LINE CAUSING A LOW CO2 ALARM ON FIXED MONITORS. PERSONAL MONITORS NEVER ALARMED. ENHANCEMENTS MADE TO THE CONTROL LOGIC OF PT2682 TO ELIMINATE THE CLOSURE OF VALVES WHEN THE PRESSURE TRANSMITTER FAILS. * PART G, NO. 6 (ADDITIONAL INFORMATION) - PIPE MOVEMENT FROM THE INCREASE PRESSURE IN THE SYSTEM WAS IDENTIFIED; WOULDN'T NECESSARILY CALL THIS VIBRATION FROM UNSUPPORTED PIPE. - THE PIPING WAS SUPPORTED, DUE TO THE INCREASED PRESSURE THE PIPE MOVED.

ON MONDAY, SEPTEMBER 18, 2017, AT 07:38 CST, OPERATORS WORKING IN THE STATION YARD AT BATON ROUGE JUNCTION DISCOVERED DIESEL FUEL IN TWO ACCESS WELLS NEAR THE LINE 2 SHIPPER VALVE MANIFOLD. INTERNAL NOTIFICATIONS WERE MADE AND A CREW WAS IMMEDIATELY DEPLOYED TO START EXPLORATORY EXCAVATIONS. LINE 2 OUTGOING AT BATON ROUGE JUNCTION WAS NOT RUNNING AT THE TIME. A VACUUM TRUCK AND HYDRO-EXCAVATION TRUCK WERE REASSIGNED TO THE LEAK AREA AND BEGAN COLLECTING ALL FREE PRODUCT IN THE ACCESS WELLS AND AS IT SURFACED IN THE EXCAVATION. THE NRC WAS NOTIFIED AT 11:05 ONCE THE DETERMINATION WAS MADE THAT COSTS WOULD LIKELY EXCEED $50,000. THE LA SPOC AND EAST FELICIANA PARISH LEPC WERE ALSO NOTIFIED. PHMSA'S ACCIDENT INVESTIGATION DIVISION MADE CONTACT WITH THE OPERATIONS MANAGER FOLLOWING THE RELEASE OF THE NRC REPORT. ALL BURIED PIPE AND EQUIPMENT IN THE AREA WHERE PRODUCT WAS DISCOVERED IN ACCESS WELLS WAS EXCAVATED AND CONTINUOUSLY MONITORED. THROUGHOUT THE COURSE OF EXCAVATION, SECTIONS OF PIPE AND DRAIN LINES WERE INDIVIDUALLY PRESSURIZED TO ASSIST IN SOURCE IDENTIFICATION. IN ORDER TO FULLY EXAMINE ALL POTENTIAL LEAK SOURCES, ON SEPTEMBER 19TH, ONCE THE AREA WAS FULLY EXCAVATED, THE ENTIRE STATION 2 INJECTION SEGMENT WAS PRESSURIZED TO THE STATION INJECTION VALVE. A 25,000 BBL BATCH OF KEROSENE WAS PUMPED TO MONITOR UNDER NORMAL OPERATION TO INCLUDE MONITORING OF CONNECTIONS DURING SHUT-DOWN. NO ADDITIONAL INDICATION OF LEAKS WERE DISCOVERED. DESPITE ALL THESE EFFORTS, NO SOURCE OF THE RELEASE COULD BE POSITIVELY IDENTIFIED. AT 15:21 ON 9/19/2017, THE DETERMINATION WAS MADE TO RESUME STEADY-STATE OPERATIONS WHILE CONTINUING TO MONITOR. IN ADDITION TO CONTINUOUS VISUAL MONITORING, MONITORING WELLS WERE ALSO INSTALLED IN THE AREA. OVER THE SUBSEQUENT THREE DAYS, ALL NORMAL SCENARIOS WERE PERFORMED AS PART OF ONGOING OPERATIONS WITH NO ADDITIONAL EVIDENCE OF LEAKS. ALL SPILLED PRODUCT WAS CONTAINED IN THE IMMEDIATE AREA. CONTAMINATED SOIL IS BEING REMOVED AS PART OF REMEDIATION ACTIVITIES THAT ARE STILL IN-PROGRESS. FINAL SPILL VOLUME CALCULATIONS ARE ALSO IN PROGRESS. AS OF 10/12/17 AREA REMAINS EXCAVATED AND IS BEING MONITORED ROUTINELY BY OPERATIONS PERSONNEL ON SITE.

YES

NO

Yes

30.713929

-91.275048

20170334

2/1/2018

PHMSA

47

9/11/17 15:45

HARVEST PIPELINE COMPANY

TX

CRUDE OIL

0

201169.522

0

0

1990

EXCAVATION DAMAGE

THE CONTROL ROOM RECOGNIZED A POTENTIAL PROBLEM WITH THE PIPELINE AND SHUT IT IN AT APPROXIMATELY 14:55. A HPC FIELD OPERATOR WAS NOTIFIED AND SENT TO INVESTIGATE THE POTENTIAL LEAK LOCATION. THE HPC OPERATOR ARRIVED ONSITE AND CONFIRMED THERE WAS A LEAK ASSOCIATED WITH THE PIPELINE AT 15:45 (THIS IS TIME OF DISCOVERY). AT THIS TIME, THE FIELD OPERATOR WAS ABLE TO CONFIRM / ESTIMATE THE NUMBER OF BARRELS ASSOCIATED WITH THE SPILL AND MADE THE APPROPRIATE AGENCY NOTIFICATIONS. THE RRC WAS NOTIFIED AT 16:15 AND THE NRC WAS THEN NOTIFIED AT 16:34. THE SECTION OF PIPELINE ASSOCIATED WITH THE LEAK WAS ISOLATED AND THE REMAINDER OF THE SYSTEM STARTED BACK UP ON SEPTEMBER 11, 2017 AT APPROXIMATELY 18:40. THE ROOT CAUSE OF THIS ACCIDENT WAS DUE TO MISCOMMUNICATION BETWEEN SUBCONTRACTOR EXCEL TRENCHING AND THE CONTRACT SUPERVISOR MIDWAY ENERGY SERVICES (BOTH COMPANIES CONTRACTED BY TEXAS AMERICAN RESOURCES TO INSTALL FLOWLINES IN AREA). EXCEL AND MIDWAY WERE INSTRUCTED BY HPC OPERATOR RESPONDING TO ONE CALL TICKETS TO REQUEST AN HPC REPRESENTATIVE ON SITE WHEN CROSSING HPC UTILITIES. LINE LOCATE MARKINGS WERE DAMAGED BY THIRD PARTY ACTIVITY ON ROW AND EXCEL FAILED TO REQUEST THE LINE BE RELOCATED. EXCEL'S TRENCHER OPERATOR CONTINUED TRENCHING INTO HPC'S ROW WITHOUT WAITING FOR HPC REPRESENTATIVE TO ARRIVE ONSITE OR RE-MARK THE PIPELINE. IN EFFORT TO KEEP AN ACCIDENT OF THIS TYPE FROM REOCCURRING, HPC WILL CONTINUE TO MONITOR THE PIPELINE ROW'S AND STRESS TO CONTRACTORS AND OTHER STAKEHOLDERS THE IMPORTANCE OF CONTACTING OPERATORS WHEN WORKING IN AND/OR NEAR THEIR PIPELINE ROW'S.

YES

NO

Yes

28.654717

-99.038606

20170324

2/1/2018

PHMSA

48

9/10/17 2:30

MOBIL CORP

TX

Highly Volatile Liquid (such as ethane, butane, propane)

20

30700.97996

0

0

1968

EQUIPMENT FAILURE

THE MR-5 PIPELINE WAS SHUT DOWN ON SEPTEMBER 5, 2017 WHEN EMPCO LEARNED OF AN OVERTURNED THIRD-PARTY TRACK HOE IN CLOSE PROXIMITY TO EMOCS MR-5 AND MR-114 PIPELINES, THIS INCIDENT WAS ASSOCIATED WITH HURRICANE HARVEY RELATED FLOODING. (SRC-20170128). DURING THE PROCESS OF FLARING THE PRODUCT FROM THE MR-5 PIPELINE THE SALT FLAT MANUAL VALVE DEVELOPED A SEAL/PACKING LEAK. EMPCO CONTINUED FLARING THE PIPELINE CONTENTS UNTIL THE VALVE LEAK STOPPED. EMPCO REPLACED THE OLDER M&J VALVE WITH A NEW VALVE. FOLLOW-UP NRC REPORT # - 1189965

YES

NO

Yes

30.123524

-94.437604

20170332

2/1/2018

PHMSA

49

9/5/17 13:30

MAGELLAN AMMONIA PIPELINE, L.P.

MN

Highly Volatile Liquid (such as ethane, butane, propane)

0

35013.85362

0

0

1978

MATERIAL FAILURE OF PIPE OR WELD

LOCAL TECHNICIAN RECEIVED NOTIFICATION FROM A THIRD PARTY REGARDING A POTENTIAL DEAD SPOT IN A FARM FIELD. UPON INVESTIGATION FROM MAGELLAN EMPLOYEE, AN AREA OF DEAD VEGETATION WAS OBSERVED WITH AN ANHYDROUS AMMONIA ODOR. THE INVESTIGATION EVENT WAS INITIATED AT 13:30. THE PIPELINE WAS NOT ACTIVE AT THE TIME OF EVENT. THE TECHNICIAN CLOSED THE MANUAL VALVES AT MP 226 AND 217.5. UPON EXCAVATION OF THE PIPE, THE RELEASE WAS DETERMINED TO BE A PINHOLE IN THE LONGITUDINAL SEAM. A PLIDCO CLAMP WAS BOLTED TO THE PIPE TO STOP THE RELEASE AND WAS SUBSEQUENTLY WELDED TO MAKE THE REPAIR PERMANENT. APPROXIMATELY 44 CUBIC YARDS OF AFFECTED SOIL WAS REMOVED

DDURING DEWATERING ACTIVITIES FROM HURRICANE HARVEY AND HEAVY RAINFALL RELATED FLOODING, MAGELLAN PERSONNEL IDENTIFIED LEL READINGS AND VAPORS WITH HYDROCARBON ODOR. MAGELLAN PERSONNEL NOTIFIED 911 AND EVACUATED THE FACILITY UPWIND. THE AREA WAS COVERED WITH FIRE SUPPRESSION FOAM TO SUPPRESS THE VAPORS. ONCE SAFE TO DO SO, RECOVERY OPERATIONS COMMENCED. CONTINUOUS AIR MONITORING WAS CONDUCTED AND ADDITIONAL FOAM WAS APPLIED WHEN VOC LEVELS INCREASED. IN COORDINATION WITH THE USCG (INCIDENT COMMANDER), SECTIONS OF THE FACILITY DIKE WALL WAS REMOVED TO ALLOW WATER TO DRAIN OFF THE ROADWAYS TO ENABLE RESPONSE EQUIPMENT ACCESS TO THE RELEASE AREA. SHEEN WAS OBSERVED IN THE DITCH ALONG THE EASTERN FACILITY BOUNDARY AND IN THE HOUSTON SHIP CHANNEL BUT DID NOT MIGRATE PASSED THE DEFENSIVE BOOM DEPLOYED AT THE FACILITY OUTFALL. HAND GAUGING TANK 518 PRIOR TO HURRICANE HARVEY INDICATED 5272 BBLS OF REFINED PRODUCTS WAS RELEASED. APPROXIMATELY 672 BBLS WERE RECOVERED. THE REMAINING PRODUCT EVAPORATED. FLOOD WATERS CAUSED THE TANK TO FLOAT. WHEN THE WATERS RECEDED THE TANK POSITION WAS SHIFTED SO THE SUMPS WERE NOT POSITIONED TO BE SEATED PROPERLY. THIS CAUSED STRESS ON THE WELDS THAT ATTACHED THE SUMPS TO THE BOTTOM PLATE AND THUS THE WELDS AROUND THE SUMP FAILED. THE SUMP CAVITY WILL BE ENLARGED TO ACCOMMODATE POTENTIAL FUTURE SHIFTING. APPROXIMATELY 60 CUBIC YARDS OF SOIL HAVE BEEN REMEDIATED. SOIL REMEDIATION IS ONGOING. ADDITIONAL FOLLOW UP NRC REPORTS ON INCIDENT: 1189014, 1189206, AND 1189433 SUPPLEMENTAL FILED: UPDATE TO PART B6, PART C6, AND PART H

DURING DEWATERING ACTIVITIES FROM HURRICANE HARVEY AND HEAVY RAINFALL RELATED FLOODING, MAGELLAN PERSONNEL IDENTIFIED LEL READINGS AND VAPORS WITH HYDROCARBON ODOR. MAGELLAN PERSONNEL NOTIFIED 911 AND EVACUATED THE FACILITY UPWIND. THE AREA WAS COVERED WITH FIRE SUPPRESSION FOAM TO SUPPRESS THE VAPORS. ONCE SAFE TO DO SO, RECOVERY OPERATIONS COMMENCED. CONTINUOUS AIR MONITORING WAS CONDUCTED AND ADDITIONAL FOAM WAS APPLIED WHEN VOC LEVELS INCREASED. IN COORDINATION WITH THE USCG (INCIDENT COMMANDER), SECTIONS OF THE FACILITY DIKE WALL WAS REMOVED TO ALLOW WATER TO DRAIN OFF THE ROADWAYS TO ENABLE RESPONSE EQUIPMENT ACCESS TO THE RELEASE AREA. SHEEN WAS OBSERVED IN THE DITCH ALONG THE EASTERN FACILITY BOUNDARY AND IN THE HOUSTON SHIP CHANNEL BUT DID NOT MIGRATE PASSED THE DEFENSIVE BOOM DEPLOYED AT THE FACILITY OUTFALL. HAND GAUGING TANK 517 PRIOR TO HURRICANE HARVEY INDICATED 5716 BBLS OF REFINED PRODUCTS WAS RELEASED. APPROXIMATELY 672 BBLS WERE RECOVERED. THE REMAINING PRODUCT EVAPORATED. FLOOD WATERS CAUSED THE TANK TO FLOAT. WHEN THE WATERS RECEDED THE TANK POSITION WAS SHIFTED SO THE SUMPS WERE NOT POSITIONED TO BE SEATED PROPERLY. THIS CAUSED STRESS ON THE WELDS THAT ATTACHED THE SUMPS TO THE BOTTOM PLATE AND THUS THE WELDS AROUND THE SUMP FAILED. THE SUMP CAVITY WILL BE ENLARGED TO ACCOMMODATE POTENTIAL FUTURE SHIFTING. APPROXIMATELY 60 CUBIC YARDS OF SOIL HAVE BEEN REMEDIATED. SOIL REMEDIATION IS ONGOING. ADDITIONAL FOLLOW UP NRC REPORTS ON INCIDENT: 1189014, 1189206, AND 1189433 SUPPLEMENTAL FILED: UPDATE TO PART B6, PART C6, AND PART H

YES

NO

Yes

29.746557

-95.201172

20170320

2/1/2018

PHMSA

52

8/31/17 7:55

ENTERPRISE CRUDE PIPELINE LLC

TX

CRUDE OIL

0

710661.3719

0

0

1991

EQUIPMENT FAILURE

ON 08/31/17 AT APPROXIMATELY 07:55 LOCAL OPERATING PERSONNEL DISCOVERED CRUDE OIL CONTAINED WITHIN THE TANK DIKE OF 4701. THE ROOF DRAIN WAS CLOSED AND THE RELEASE WAS STOPPED. AFTER AN INSPECTION OF THE TANK, NO INTEGRITY ISSUES WERE FOUND WITH THE FLOATING ROOF. IT HAS BEEN DETERMINED THAT THE ROOF DRAIN WAS CLOGGED WHICH RESULTED IN ABNORMAL WATER ACCUMULATION ON THE ROOF CAUSING CRUDE OIL TO COME UP THROUGH THE LEG SLEEVES. AT THE TIME OF DISCOVERY, THE INITIAL COST FOR REPAIR AND CLEAN-UP WAS ESTIMATED TO BE $20,000. ONCE A VISUAL WAS PLACED ON THE FLOATING ROOF THAT ESTIMATE WAS ABOVE THE $50,000 THRESHOLD AND THE NRC CALL WAS IMMEDIATELY PLACED. 48 HOUR UPDATE NUMBER 1189123.

DURING HURRICANE HARVEY, TORRENTIAL RAINFALL RESULTING IN THE PARTIAL SINKING OF 2 EXTERNAL FLOATING TANK ROOFS. THE TANK ROOF WATER DRAIN VALVES WERE LEFT IN THE OPEN POSITION IN AN EFFORT TO PREVENT TANK ROOF SINKING, DAMAGE AND FAILURE. THE SIGNIFICANT VOLUME OF RAINWATER CAUSED THE TANK ROOF TO PARTIALLY SINK, WHICH IN TURN ALLOWED PRODUCT TO PROPAGATE THROUGH THE TANK ROOF LEG HOLES ONTO THE EXTERNAL ROOF THUS DRAINING THROUGH THE TANK ROOF WATER DRAIN VALVE INTO SECONDARY EARTHEN DIKE CONTAINMENT. THE RELEASE WAS DISCOVERED DURING HURRICANE RECONNAISSANCE AND RESPONSE ACTIVITIES. OPERATIONS PERSONNEL NOTIFIED OSRO AND DEPLOYED ABSORBENT BOOM, SKIMMERS, AND VACUUM TRUCKS TO RECOVER AND CLEANUP THE PRODUCT. ALL FACILITY OUTFALLS REMAINED CLOSED, PRODUCT WAS CONTAINED ONSITE IN SECONDARY EARTHEN CONTAINMENT. A TOTAL OF 22.5BBLS OF GASOLINE WAS RELEASED AND RECOVERED ONSITE. SUPPLEMENTAL REPORT  REPORT WAS SPLIT INTO TWO SEPARATE 7000-1 REPORTS AS REQUESTED BY PHMSA ACCIDENT TEAM.

DURING HURRICANE HARVEY, TORRENTIAL RAINFALL RESULTING IN THE PARTIAL SINKING OF 2 EXTERNAL FLOATING TANK ROOFS. THE TANK ROOF WATER DRAIN VALVES WERE LEFT IN THE OPEN POSITION IN AN EFFORT TO PREVENT TANK ROOF SINKING, DAMAGE AND FAILURE. THE SIGNIFICANT VOLUME OF RAINWATER CAUSED THE TANK ROOF TO PARTIALLY SINK, WHICH IN TURN ALLOWED PRODUCT TO PROPAGATE THROUGH THE TANK ROOF LEG HOLES ONTO THE EXTERNAL ROOF THUS DRAINING THROUGH THE TANK ROOF WATER DRAIN VALVE INTO SECONDARY EARTHEN DIKE CONTAINMENT. THE RELEASE WAS DISCOVERED DURING HURRICANE RECONNAISSANCE AND RESPONSE ACTIVITIES. OPERATIONS PERSONNEL NOTIFIED OSRO AND DEPLOYED ABSORBENT BOOM, SKIMMERS, AND VACUUM TRUCKS TO RECOVER AND CLEANUP THE PRODUCT. ALL FACILITY OUTFALLS REMAINED CLOSED, PRODUCT WAS CONTAINED ONSITE IN SECONDARY EARTHEN CONTAINMENT. A TOTAL OF 22.5BBLS OF GASOLINE WAS RELEASED AND RECOVERED ONSITE. SUPPLEMENTAL REPORT  REPORT WAS SPLIT INTO TWO SEPARATE 7000-1 REPORTS AS REQUESTED BY PHMSA ACCIDENT TEAM.

YES

NO

Yes

29.717672

-95.176253

20170315

2/1/2018

PHMSA

55

8/27/17 23:37

DRY TRAILS MIDSTREAM ENERGY, LLC

OK

Highly Volatile Liquid (such as ethane, butane, propane)

74.2

221847.7373

0

0

1969

NATURAL FORCE DAMAGE

TEXAS COUNTY, OK EMERGENCY DISPATCHER RECEIVED CALL FROM AN UNKNOWN SOURCE REPORTING A SMALL FIRE IN A PASTURE. FIRE DEPARTMENT WAS DISPATCHED. DCP AND WTG WERE ALSO NOTIFIED. DCP NOTIFIED BADGER FIRST RESPONDER AT 0045 ON AUGUST 28, 2017. AS A PRECAUTIONARY MEASURE, BADGER RESPONDER NOTIFIED BREITBURN PLANT TO SHUT DOWN PUMPS AT 0045 ON AUGUST 28, 2017. LEAK WAS VERIFIED AS BEING ON THE DRY TRAILS PIPELINE AT 0104, AUGUST 28, 2017. UPSTREAM BLOCK VALVE AT STRAIGHT VALVE SET WAS CLOSED AT 0130, AUGUST 28, 2017, DOWNSTREAM BLOCK VALVE AT MIDWAY VALVE SET WAS CLOSED AT 0145, AUGUST 28, 2017. IN ORDER TO PROVIDE DOUBLE BLOCK AND BLEED, HOOKER VALVE SET WAS CLOSED AT 0900, AUGUST 28, 2017. A SMALL FIRE WAS ALLOWED TO CONTINUE TO BURN OFF VAPORS UNTIL FLARES COULD BE INSTALLED. 24 HOUR SECURITY AND MONITORING WAS INITIATED. UPON PRODUCT EXTRACTION, LINE WAS EXCAVATED FOR OBSERVATION AND REPAIR METHODOLOGY. OPEN HOLE INSPECTION REVEALED NO EVIDENCE OF CORROSION. COAL TAR COATING WAS FOUND TO BE BONDED AND IN VERY GOOD CONDITION. RECENT ILI DATA REVEALED THE NEAREST ANOMALY (56 % METAL LOSS) AT 1636 FEET DOWNSTREAM OF THE LEAK. A SMALL PINHOLE WAS OBSERVED WITH SURROUNDING COATING BLOWN AWAY. THE PINHOLE WAS SURROUNDED BY A HALF INCH DIAMETER PIT WITH VERY SHINY METAL FLOW AWAY FROM THE PIT. A VERY RECENT EXTREME SOURCE OF HEAT AND RAPID COOLING WAS DETERMINED TO BE THE SOURCE. DUE TO A LIGHTENING STORM REPORTED IN THE AREA AT THE TIME OF THE INCIDENT, A LIGHTENING STRIKE WAS CONSIDERED AS THE MOST LIKELY SOURCE. A DECISION WAS MADE TO REPLACE 13.5 FEET OF PIPE. METALURGICAL ANALYSIS IN PROGRESS.

DURING HURRICANE HARVEY, TANK 150-8 EXTERNAL FLOATING ROOF GAVE A MOVEMENT ALARM TO THE CONTROL ROOM. AT THE MOMENT IT WAS SAFE ENOUGH FOR AN OPERATOR TO CHECK THE TANK, AT WHICH TIME IT WAS DETERMINED THE ROOF HAD TILTED FROM THE EXCESSIVE RAIN EVENT (50+" OF RAIN IN LESS THAN 2 DAYS). FOAMING WAS IMPLEMENTED IN THE AREA TO LOWER LEL'S. THE ROOF DRAINS AND OUTFALLS WERE CLOSED. PRODUCT WAS CLEANED UP USING LIFT STATIONS AND VACUUM TRUCKS. THE TANK WAS TAKEN OUT OF SERVICE FOR REPAIRS. 12/5/2017 -CORRECTIVE ACTIONS: PRIOR TO HURRICANE HARVEY, KM IDENTIFIED THAT EFR TANKS EQUIPPED WITH TWO 4 DRAINS STRUGGLED TO DRAIN DURING A PERIOD OF SUSTAINED HEAVY RAINFALL. IN ORDER TO UPGRADE THE DRAINAGE ON THOSE TANKS, KM HAS BEEN REPLACING THE TWO 4 DRAINS WITH A 6 DRAIN TO ALLOW FOR INCREASED DRAINAGE CAPACITY. NONE OF THOSE TANKS ALREADY EQUIPPED WITH THE 6 DRAINS HAD ROOF ISSUES DURING THE STORM. THEREFORE, THE PLAN TO REPLACE THE 4 ROOF DRAINS WILL CONTINUE AND WILL BE DONE AS TANKS ARE TAKEN OUT OF SERVICE FOR THEIR API 653 INSPECTION. ESTIMATED COST OF REPAIR WILL BE $1.8 MILLION, IF ANY COST CHANGE OCCURS, A SUPPLEMENTAL REPORT WILL BE SUBMITTED THE INITIAL TIME OF 20:30 WAS A TYPO. PLEASE SEE TIMEFRAME BELOW: 08/26/2017 23:30 - MOVEMENT ALARM 23:30 - FACILITY SHUTDOWN 23:35 - RESOURCES ARRIVE ON SITE 08/27/2017 11:28 - NRC CONTACTED 8/29/2017 23:35 - FACILITY RESTARTED

YES

NO

Yes

29.72536

-95.20334

20170293

2/1/2018

PHMSA

57

8/23/17 18:15

PHILLIPS 66 PIPELINE LLC

LA

CRUDE OIL

0

135428.1628

0

0

2016

INCORRECT OPERATION

DURING A STATION CHECKOUT DUE TO A CALLOUT, P66 PIPELINER DISCOVERED THE AIR CONDITIONER IN THE CONTROL BUILDING AT CR-02 WESTLAKE METER STATION HAD FAILED RESULTING IN PLC EQUIPMENT FAULT DUE TO THE HIGH TEMPERATURE ENVIRONMENT. IN COORDINATION WITH P66 TECHNICIAN AND CONTROL CENTER, THE PIPELINER INITIATED A STATION RESET. THE PLC RESET RESULTED IN THE METER BACKPRESSURE CONTROL VALVE TO CLOSE AND SUBSEQUENT HI/HI DISCHARGE PRESSURE SHUTDOWN AT THE ORIGINATION STATION. THE METER STATION PRESSURE DID NOT EXCEED MOP, HOWEVER SUBSEQUENT INVESTIGATION FOUND EVIDENCE OF DAMAGE DUE TO OVER-TORQUEING OF THE NON-METALLIC PAPER FLANGE GASKET. ACTIONS TAKEN TO PREVENT RE-OCCURRENCE: 1. A TEMPERATURE MONITOR WITH HI TEMP LEVEL ALARM TO CONTROL CENTER WAS ADDED TO THE METER STATION BUILDING TO PROVIDE EARLY WARNING OF POSSIBLE AIR CONDITIONER FAILURE THAT COULD HAVE ADVERSE EFFECT ON CONTROL EQUIPMENT. 2. PHILLIPS 66 PIPELINERS WERE RE-QUALIFIED ON OQ FOR PROPER TORQUEING PROCEDURES. 3. THE LOCAL WORKGROUP CONDUCTED RE-TRAINING ON PROCEDURES FOR PROPER TORQUEING OF FLANGED PIPE JOINTS AND PROPER GASKET SELECTION 4. THE FAILED GASKET WAS REPLACED WITH THE COMPANY PREFERRED SPIRAL WOUND METALLIC GASKET AND PROPERLY TORQUED BY QUALIFIED INDIVIDUALS. 5. THE SIMILAR ORIGINATION STATION STRAINER GASKET WAS REPLACED VERIFIED TO BE PROPERLY TORQUED (NO EVIDENCE OF OVER-TORQUEING FOUND) 6. CONTROL CENTER MODIFIED OPERATING PROCEDURES TO SHUT DOWN THE PIPELINE SYSTEM IN THE EVENT OF A PLC COMMUNICATION FAILURE.

12/14/17 UPDATE: SUBSEQUENT INVESTIGATION DETERMINED THE EXISTING (STAND-BY) STYLE UPS FAILED DUE TO FREQUENT UTILITY POWER QUALITY CONDITIONS (INPUT VOLTAGE VARIATIONS GREATER THAN +/- 3%). THIS (STANDBY) STYLE UPS WAS REPLACED BY A (DOUBLE CONVERSION) STYLE THAT CAN CORRECT UTILITY POWER QUALITY PROBLEMS (CAN ACCEPT VOLTAGE VARIATION IN THE +/- 20% RANGE). THE KINDER MORGAN (SFPP, LP) RICHMOND, CA DIRECT-SUCTION PUMP STATION EXPERIENCED A GASOLINE RELEASE DUE TO AN OVERFLOW OF THE CC SUMP DUE TO A UPS FAILURE. KINDER MORGAN'S LS-69 (INTERSTATE FROM THE CHEVRON REFINERY) WAS PUMPING GASOLINE TO THE FACILITY AND CHEVRON REFINERY'S (THE SHIPPER) PUMP DID NOT SHUT DOWN DURING THE UPS FAILURE. THE STATION CONTINUED TO RECEIVE PRODUCT FROM LS 69 INTO THE CC SUMP (CAPACITY 68 BBL) VIA THE FULL FLOW PRESSURE RELIEF VALVE (SET TO 200PSI) AT RICHMOND. THE SUMP OVERFILLED. THE FIELD CONTROLLER CALLED THE SHIPPER TO SHUT DOWN THEIR PUMPS. SUBSEQUENT INVESTIGATION ESTIMATED THE SPILL VOLUME TO BE 465 GALLONS (11.1 BBLS) AND DETERMINED THE CAUSE TO BE FAILURE OF THE UPS (UNINTERRUPTABLE POWER SUPPLY) WHICH CAUSED A LOSS OF COMMUNICATION WITH THE SHIPPER'S PUMP. NOTE: PART A, #4 ORIGINALLY CALLED IN AS RELEASE OF UNKNOWN VOLUME ON 8/17 (NRC#1187610), RE-NOTIFIED WHEN DETERMINED TO MEET THE $50,000 CRITERIA (NRC#1187697) ON 8/18, AND 48-HOUR PHMSA UPDATED ON 8/19 (NRC#1187828). NOTE: PART C, #4 FACILITY WAS BUILT IN 1957, THE SUMP IS ESTIMATED TO BE BUILT AT ABOUT THE SAME TIME. NOTE: PART D, #5B UNKNOWN MINIMAL AMOUNT ONTO GROUNDWATER, WILL BE REMEDIATED USING ALREADY EXISTING GROUNDWATER TREATMENT SYSTEM. ENTERED 0.01 BBL ONTO FORM.

YES

NO

Yes

37.940135

-122.376323

20170291

2/1/2018

PHMSA

59

8/8/17 9:45

SEADRIFT PIPELINE CORP

TX

Highly Volatile Liquid (such as ethane, butane, propane)

2

108067.4495

0

0

1961

CORROSION FAILURE

A PROPANE LEAK WAS EXPERIENCE FROM THE ELLA BROWNSVILLE PIPELINE. A LOCAL LANDOWNER CONTACTED THE OPERATOR WHEN HE OBSERVED ICE BUILD-UP ON THE GROUND. UPON FURTHER INVESTIGATION BY THE PIPELINE TECHNICIAN, AN UNDERGROUND LEAK WAS DISCOVERED. THERE WAS NO FIRE, EXPLOSION, OR LOSS OF PROPERTY. UPON NOTIFICATION TO THE HOUSTON CONTROL CENTER, THE FEED INTO THE PIPELINE FROM SUPPLIERS WAS IMMEDIATELY SHUTDOWN, AND THE CONSUMER WAS ASKED TO TAKE AS MUCH PROPANE AS POSSIBLE TO BRING THE LINE PRESSURE DOWN. CLEARING OF AN 8 MILE SECTION OF LINE COMMENCED THAT EVENING, AND THE LINE WAS CLEARED TO A FLARE IN PREPARATION FOR EXCAVATION, ANALYSIS AND REPAIR OF THE LEAK SITE. IT WAS DETERMINED THAT THE LEAK ORIGINATED FROM A CORROSION PINHOLE, METALLURGICAL ANALYSIS DETERMINED THAT IT WAS MICROBIOLOGICALLY INDUCED CORROSION. TO PREVENT RECURRENCE, DOW REMOVED APPROXIMATELY 20-FEET OF PIPE, INCLUDING THE LEAK SITE, AND REPLACED IT WITH NEW PIPE BEFORE PLACING BACK IN SERVICE.

YES

NO

Yes

26.189737

-97.434653

20170279

2/1/2018

PHMSA

60

8/8/2017

ENBRIDGE PIPELINES (OZARK) L.L.C.

OK

CRUDE OIL

0

884188.2228

0

0

1948

NATURAL FORCE DAMAGE

ON MAY 23, 2017 A MARATHON EMPLOYEE PERFORMING AN INSPECTION OF REMOTE VALVES SITES ON LINE 51 MADE ENBRIDGE AWARE THAT THE 20" AUXILIARY VALVES (CG-51-29.63L) THAT CONNECTS TO THE 22" TRANSMISSION PIPELINE AT MP 29.63 SHOWED EVIDENCE OF CRUDE OIL SEEPAGE FROM THE CLAMP RING. ENBRIDGE REGULARLY MONITORED THESE VALVES FOR LEAKAGE, HOWEVER AFTER NOTIFICATION THAT NEW SEEPAGE HAD BEEN OBSERVED BEGAN VISITING THE VALVES DAILY TO MITIGATE POTENTIAL ENVIRONMENTAL IMPACTS. ENBRIDGE (THE OPERATOR OF THE LINE 51 PIPELINE), IN COLLABORATION WITH MARATHON (THE OWNER OF THE LINE 51 PIPELINE), DECIDED TO STOP THE SEEPAGE BY INJECTING A SEALANT INTO THE ANNULAR SPACE BETWEEN THE BONNET OF THE VALVE AND THE CLAMP RING. A THIRD PARTY CONTRACTOR WAS ENGAGED AND THE REPAIR STRATEGY WAS PLANNED AND THE INJECTION OF SEALANT TOOK PLACE IN JULY. THE AUXILIARY VALVES WERE MONITORED DAILY FOR TWO WEEKS TO DETERMINE IF THE REPAIR STRATEGY WAS SUCCESSFUL. AS OF AUGUST 8, THE VALVES STILL SHOWED EVIDENCE OF SEEPAGE SO ANOTHER REPAIR STRATEGY THAT WILL BE EXECUTED BY MARATHON WAS DETERMINED TO BE NECESSARY. THE AUXILIARY 20" VALVES WILL BE REMOVED FROM THE PIPELINE SYSTEM AND BLIND FLANGES WILL BE INSTALLED IN THEIR PLACE. NEW STOPPLES WILL BE INSTALLED AT MP 29.63 TO PROVIDE ISOLATION. THE NRC WAS NOTIFIED AT 17:38 CDT ON AUGUST 8, 2017 (NRC#1186654) WHEN IT WAS DETERMINED THAT COSTS WOULD EXCEED THE $50,000 THRESHOLD FOR THE NEW REPAIR STRATEGY. APPROXIMATELY 1 GALLON OR LESS OF CRUDE OIL HAD RELEASED INTO THE VALVE CONTAINMENT AREA. THE CAUSE OF THE RELEASE HAS BEEN DETERMINED TO BE DUE TO THERMAL EXPANSION. SHUTDOWN AND ISOLATION WAS NOT REQUIRED DUE TO THE NATURE AND MINIMAL VOLUME OF THE LEAK; HOWEVER, THE PHMSA PORTAL SYSTEM REQUIRED ANSWERS TO PART E, QUESTIONS 5.A - 5.C. WHICH DO NOT APPLY TO THIS RELEASE.

YES

NO

Yes

36.2639

-96.394422

20170253

2/1/2018

PHMSA

61

8/8/2017

ENBRIDGE PIPELINES (OZARK) L.L.C.

OK

CRUDE OIL

0

884188.2228

0

0

1948

NATURAL FORCE DAMAGE

ON MAY 23, 2017 A MARATHON EMPLOYEE PERFORMING AN INSPECTION OF REMOTE VALVES SITES ON LINE 51 MADE ENBRIDGE AWARE THAT THE 20" AUXILIARY VALVES (CG-51-5.80L) THAT CONNECTS TO THE 22" TRANSMISSION PIPELINE AT MP 5.80 SHOWED EVIDENCE OF CRUDE OIL SEEPAGE FROM THE CLAMP RING. ENBRIDGE REGULARLY MONITORED THESE VALVES FOR LEAKAGE, HOWEVER AFTER NOTIFICATION THAT NEW SEEPAGE HAD BEEN OBSERVED BEGAN VISITING THE VALVES DAILY TO MITIGATE POTENTIAL ENVIRONMENTAL IMPACTS. ENBRIDGE (THE OPERATOR OF THE LINE 51 PIPELINE), IN COLLABORATION WITH MARATHON (THE OWNER OF THE LINE 51 PIPELINE), DECIDED TO STOP THE SEEPAGE BY INJECTING A SEALANT INTO THE ANNULAR SPACE BETWEEN THE BONNET OF THE VALVE AND THE CLAMP RING. A THIRD PARTY CONTRACTOR WAS ENGAGED AND THE REPAIR STRATEGY WAS PLANNED AND THE INJECTION OF SEALANT TOOK PLACE IN JULY. THE AUXILIARY VALVES WERE MONITORED DAILY FOR TWO WEEKS TO DETERMINE IF THE REPAIR STRATEGY WAS SUCCESSFUL. AS OF AUGUST 8, THE VALVES STILL SHOWED EVIDENCE OF SEEPAGE SO ANOTHER REPAIR STRATEGY THAT WILL BE EXECUTED BY MARATHON WAS DETERMINED TO BE NECESSARY. THE AUXILIARY 20" VALVES WILL BE REMOVED FROM THE PIPELINE SYSTEM AND BLIND FLANGES WILL BE INSTALLED IN THEIR PLACE. NEW STOPPLES WILL BE INSTALLED AT MP 5.80 TO PROVIDE ISOLATION. THE NRC WAS NOTIFIED AT 17:26 CDT ON AUGUST 8, 2017 (NRC#1186651) WHEN IT WAS DETERMINED THAT COSTS WOULD EXCEED THE $50,000 THRESHOLD FOR THE NEW REPAIR STRATEGY. APPROXIMATELY 1 GALLON OR LESS OF CRUDE OIL HAD RELEASED INTO THE VALVE CONTAINMENT AREA. THE CAUSE OF THE RELEASE HAS BEEN DETERMINED TO BE DUE TO THERMAL EXPANSION. SHUTDOWN AND ISOLATION WAS NOT REQUIRED DUE TO THE NATURE AND MINIMAL VOLUME OF THE LEAK; HOWEVER, THE PHMSA PORTAL SYSTEM REQUIRED ANSWERS TO PART E, QUESTIONS 5.A - 5.C. WHICH DO NOT APPLY TO THIS RELEASE. .

ON 8/4/17, AT APPROXIMATELY 05:30 CST, AN ONCOMING A-OPERATOR SMELLED GASOLINE ODORS NEAR THE LINE 1 LAUNCH TRAP AT BATON ROUGE AND INFORMED THE ON-SHIFT B OPERATOR. THE B OPERATOR IMMEDIATELY INVESTIGATED AND DISCOVERED THE TRAP DOOR LEAKING GASOLINE. HE IMMEDIATELY NOTIFIED THE A AND LEAD OPERATORS. LINE 1 WAS SHUTDOWN AT APPROXIMATELY 05:33. PRESSURE WAS RELIEVED FROM THE TRAP VIA DRAIN AND STATION EVACUATION PUMP - STOPPING THE ACTIVE LEAK AT APPROXIMATELY 05:45. ALL SPILLED PRODUCT WAS CONTAINED ON-SITE IN THE IMMEDIATE AREA NEAR THE TRAP. THE OPERATIONS MANAGER WAS NOTIFIED AT APPROXIMATELY 05:39 WHO, IN TURN, NOTIFIED THE DISTRICT DIRECTOR OF OPERATIONS AND LOCAL ENVIRONMENTAL SPECIALIST. LINE 1 WAS RESTARTED AT APPROXIMATELY 06:58 AFTER VERIFYING PRESSURE WAS OFF THE TRAP AND IT WAS SAFE TO RESUME OPERATIONS. TECHNICIANS, PROJECT INSPECTORS AND CONTRACTORS WERE MOBILIZED WHO RESPONDED AND STARTED PRODUCT CONTAINMENT AND RECOVERY AS WELL AS REPAIR ACTIVITIES. INITIAL REPAIR (REPLACING THE DOOR O-RING) STARTED AT APPROXIMATELY 07:50. FINAL REPAIRS WERE COMPLETED AT APPROXIMATELY 08:10. CLEANUP ACTIVITIES ARE STILL IN-PROGRESS. BASED ON THE ESTIMATED SPILL VOLUME (17.3 BBLS) AND OBSERVED ESTIMATED RATE OF RELEASE, THE LEAK IS BELIEVED TO HAVE STARTED AT APPROXIMATELY 01:35. THE O-RING WAS INSTALLED ON 2/27/17 (THE LAST TIME THE TRAP WAS OPENED) WHEN AN INSPECTION TOOL WAS LOADED INTO THE TRAP. ALTHOUGH INVESTIGATION AND INCIDENT ANALYSIS IS IN PROGRESS, INITIAL ASSESSMENT INDICATES AGE AND USE OF LAUNCH TRAP DOOR RESULTED IN MECHANICAL MISALIGNMENT BETWEEN THE DOOR AND TRAP FACINGS; ULTIMATELY LEADING TO O-RING FAILURE. THE PARISH LEPC, STATE OF LA AND NRC WERE EACH NOTIFIED AND A COURTESY CALL WAS MADE TO PHMSA SOUTHWEST REGIONAL DIRECTOR (ACTING)AND PHMSA ACCIDENT INVESTIGATOR.

YES

NO

Yes

30.713929

-91.275048

20170263

2/1/2018

PHMSA

63

8/3/17 6:59

ENERGY TRANSFER COMPANY

TX

Highly Volatile Liquid (such as ethane, butane, propane)

425.6

1300091.697

0

0

2016

CORROSION FAILURE

THIS SUPPLEMENTAL REPORT UPDATES PART G WITH THE APPARENT CAUSE OF THE LEAK, AND CORRECTED PART C: 3E.

ON 8/2/17: 1213 MCCHORD PIPELINE (MPL) CONTROLLER GOT AN ALARM FOR HIGH DIFFERENTIAL FLOW, SHIPPED MPL / RECEIVED AT THE AIR FORCE BASE (JBLM) 1216 FLOW DIFFERENTIAL INCREASED, PUMP DISCHARGE PRESSURE DECREASED, CONTROLLER AND SHIFT SUPERVISOR REVIEWED TRENDS AND DETERMINED THEY INDICATED A LEAK 1218 MPL SHUT DOWN BY OUTSIDE OPERATOR 1225 MPL PIPELINE INSPECTOR RECEIVED A CALL FROM THIRD PARTY CONTRACTOR SEFNCO THAT THEY HIT OUR LINE AT 100TH AND A STREET IN TACOMA, WA (PIERCE COUNTY) AND THAT FUEL WAS COMING UP OUT OF THE GROUND 1225 MPL INSPECTOR TOLD SEFNCO TO CALL FIRE DEPARTMENT AND IMMEDIATELY LEFT OUR PLANT ALONG WITH TWO OTHER INSPECTORS TO CLOSE UPSTREAM AND DOWNSTREAM VALVES 1245 VALVE AT MP 9.958 CLOSED 1246 VALVE AT MP 2.38 CLOSED 1254 VALVE AT MP 5.057 CLOSED 1254 MPL INSPECTOR ARRIVES ON SITE TO SECURE AREA, BEGIN AIR MONITORING 1300 FIRST VACUUM TRUCKS ARRIVE ON SITE TO RECOVER JET FUEL 1600 HYDROEXCAVATING STARTS IN ORDER TO MAKE A TEMPORARY REPAIR ON THE PIPE 2000 TEMPORARY CLAMP INSTALLED ON PIPE AT POINT OF PUNCTURE, LEAK STOPPED

YES

NO

Yes

47.16655

-122.43146

20170268

2/1/2018

PHMSA

65

7/31/17 12:30

CHEVRON PIPE LINE CO

TX

Highly Volatile Liquid (such as ethane, butane, propane)

2

122853.0414

0

0

1952

MATERIAL FAILURE OF PIPE OR WELD

AT APPROXIMATELY 1230 CDT ON 31JUL17 CPL WAS NOTIFIED OF A POTENTIAL RELEASE ON OUR PIPELINE ROW NEAR FANNETT. THE LANDOWNER NOTICED INTERMITTENT BUBBLES IN STANDING WATER ON THE ROW. CPL PERSONNEL ARRIVED ONSITE & CONFIRMED PRESENCE OF A HYDROCARBON RELEASE ON THE 8" PT. ARTHUR TO MT. BELVIEU PROPYLENE LINE OF APPROXIMATELY 1 BUBBLE PER MINUTE IN THE STANDING WATER. THE PIPELINE WAS SHUT DOWN, BLOCKED IN AND PURGED WITH NITROGEN. THE PIPELINE WAS EXCAVATED AND A SHORT SECTION OF PIPE CONTAINING THE WELD WITH THE PINHOLE LEAK, WAS CUT OUT AND REPLACED. THE PIPELINE WAS RESTARTED @ 1423 ON 8-2-17.

YES

NO

Yes

29.909657

-94.25789

20170287

2/1/2018

PHMSA

66

7/31/17 11:21

SUNOCO PIPELINE L.P.

TX

CRUDE OIL

100

73452.46296

0

0

OTHER OUTSIDE FORCE DAMAGE

ON 7/31/17 AT APPROXIMATELY 11:21AM THE PIPELINE CONTROL CENTER NOTED A DECREASE IN PRESSURE ON THE 10" GOODRICH TO DOUGLASS SEGMENT OF THE KILGORE TO OTI PIPELINE. THE PIPELINE WAS IMMEDIATELY SHUTDOWN AND FIELD PERSONNEL NOTIFIED TO INVESTIGATE. AT APPROXIMATELY 11:41AM THE CONTROL CENTER RECEIVED A CALL FROM 2ND PARTY CONTRACTOR THAT WAS PERFORMING ROW MOWING INDICATING THAT ONE OF THE MOWERS HAD STRUCK THE LINE IN A SHALLOW/EXPOSED AREA AND THERE WAS A RELEASE OF CRUDE OIL. AT APPROXIMATELY 12:30PM OPERATOR PERSONNEL ARRIVED ON SITE AND DETERMINED THAT THERE WAS A RELEASE OF CRUDE OIL AND THAT THE COST OF CLEANUP AND REPAIRS WOULD LIKELY EXCEED $50K. NRC WAS NOTIFIED AT 13:26 AND THE RELEASE WAS ASSIGNED REPORT NO. 1185799. A PLIDCO MECHANICAL CLAMP WAS INSTALLED OVER THE FAILURE. ALL FREE PRODUCT WAS RECOVERED AND IMPACTED SOIL WAS REMEDIATED ON-SITE. FOLLOW UP 48HR NRC REPORT WAS FILED ON 8/2/17 AT 13:06 AND ASSIGNED REPORT NO. 1186040. STATIC PRESSURE TEST WAS ACCOMPLISHED PRIOR TO RESTART ON 8/3/17. PERMANENT REPAIR VIA CUT OUT AND REPLACEMENT WILL BE ACCOMPLISHED IN Q4 2017.

YES

NO

Yes

31.391791

-94.921067

20170272

2/1/2018

PHMSA

67

7/31/2017

ENERGY TRANSFER COMPANY

TX

Highly Volatile Liquid (such as ethane, butane, propane)

12

844.8909685

0

0

2017

EQUIPMENT FAILURE

A THERMAL RELIEF VALVE UNINTENTIONALLY OPENED BELOW THE SET PRESSURE ALLOWING FOR THE RELEASE OF NGL.

YES

NO

Yes

31.664728

-102.127632

20170267

2/1/2018

PHMSA

68

7/29/2017

DCP MIDSTREAM

TX

Highly Volatile Liquid (such as ethane, butane, propane)

0.13

3859.972808

0

0

2013

OTHER INCIDENT CAUSE

A SMALL FROST BALL FOUND ON SCREWED FITTING AROUND PUMP 2 SUCTION BYPASS VALVE. CRACK WAS FOUND IN THE THREADS OF THE NIPPLE. THREADS WERE CUT OFF AND NIPPLE RETHREADED AND BYPASS REPLUMBED. LOST 5 GALLONS OF PRODUCT AND FLARED 123 BARRELS TO MAKE REPAIRS.

ON JULY 29TH, 2017, BUCKEYE PERSONNEL WERE PERFORMING INTEGRITY WORK ON THE 412 PIPELINE FROM LIMA, OHIO TO FINDLEY, OHIO. AFTER INVESTIGATION, THE REPAIR DETERMINATION WAS A B-SLEEVE OVER THE LOCATION OF THE SEAM ANOMALIES. DURING THE REPAIR PROCESS, A WET SPOT WAS DISCOVERED FROM ONE OF THE SLEEVE ENDS BEFORE BEING WELDED. THE AFFECTED AREA OF THE PIPELINE WAS ISOLATED, A NITROGEN PURGE OF THE PIPELINE WAS INITIATED TO CLEAR THE PIPELINE OF ALL LIQUID IN PREPARATION OF A CUT-OUT REPAIR. THE PERMANENT REPAIR WAS COMPLETED ON AUGUST 3RD, 2017, AND THE REMOVED SECTION OF PIPING SENT TO THIRD PARTY FOR METALLURGICAL ANALYSIS. ROOT CAUSE WILL BE DETERMINED ONCE RESULTS HAVE BEEN RECEIVED.

YES

NO

Yes

40.935694

-83.818306

20170261

2/1/2018

PHMSA

70

7/27/2017

ONEOK NGL PIPELINE, LLC

ND

Highly Volatile Liquid (such as ethane, butane, propane)

3000

708824.2253

0

0

2016

EXCAVATION DAMAGE

AT APPROXIMATELY 16:44 ON JULY 26, 2017, ONEOK FIELD REPRESENTATIVE WAS CONTACTED BY CARSTENSEN CONSTRUCTION AND INFORMED THE CONSTRUCTION CREW INTENDED TO BORE UNDER ONEOKS BEAR CREEK LATERAL NEXT TO STATE HIGHWAY 34 ON THE FOLLOWING DAY, JULY 27, 2017. THIS LOCATION HAD BEEN PREVIOUSLY IDENTIFIED BY NORTH DAKOTA ONE-CALL TICKET NUMBER 17081108. ON JULY 27, 2017, A ONEOK EMPLOYEE WAS AT THE LOCATION AND MET WITH CARSTENSEN CONSTRUCTION TO PREPARE FOR THE BORE CROSSING. AT APPROXIMATELY 12:40, CARSTENSEN CONSTRUCTION CALIBRATED THEIR LOCATING INSTRUMENT WITH THE TRANSMITTER THAT IS ON THE HEAD OF THE DRILL FOR THE BORING TOOL. THIS CALIBRATION OF THE EQUIPMENT WAS WITNESSED BY THE ONEOK EMPLOYEE ON SITE. BEFORE STARTING THE BORE, CARSTENSEN CONSTRUCTION INFORMED THE ONEOK EMPLOYEE THAT THEY WERE GOING TO MOVE THE BORE ROUTE SOUTH, TOWARDS THE ROAD, BUT THIS WOULD NOT AFFECT THE CROSSING OF THE MARKED ONEOK PIPELINE. ONCE THE BORE BEGAN, CARSTENSEN CONSTRUCTION MONITORED THE DEPTH OF THE BORE HEAD EVERY 10 FEET AND SHARED THESE DEPTH READINGS WITH THE ONEOK EMPLOYEE ON SITE. WHEN THE BORE WAS DIRECTLY UNDER THE ONEOK PIPELINE, CARSTENSEN CONSTRUCTION IDENTIFIED THE DEPTH OF THE BORE HEAD TO BE 15 FEET 8 INCHES, WHICH INDICATED THE BORE APPROXIMATELY 8 FEET 1 _ INCHES BELOW THE ONEOK PIPELINE. UPON COMPLETION OF THE INITIAL BORE AND THE DRILL HEAD EXITING THE GROUND DOWNSTREAM OF THE ONEOK PIPELINE, THE ONEOK EMPLOYEE LEFT THE DRILL SITE AT APPROXIMATELY 15:17 HOURS. CARSTENSEN CONSTRUCTION CONTINUED WITH THEIR BORE BY REAMING THE BORE IN THE OPPOSITE DIRECTION. AT APPROXIMATELY 18:07 ON THE 27TH, THE ONEOK EMPLOYEE THAT HAD BEEN AT THE BORE LOCATION EARLIER IN THE DAY RECEIVED A CALL FROM CARSTENSEN CONSTRUCTION STATING THE ONEOK PIPELINE HAD BEEN STRUCK AND VAPOR CLOUD WAS VISIBLE AT THE BORE LOCATION. THE ONEOK REPRESENTATIVE IMMEDIATELY BEGAN THE EMERGENCY RESPONSE, CONTACTING ONEOK PIPELINE CONTROL CENTER AND HIS SUPERVISOR. THE ONEOK PIPELINE CONTROL CENTER CONFIRMED A PRESSURE DROP ON THE PIPELINE FROM 892 PSIG TO 650 PSIG AT WHICH TIME THE INJECTION FROM THE ONEOK ROCKIES MIDSTREAM BEAR CREEK PLANT WAS STOPPED AT 18:21. ONEOK PERSONNEL WERE DISPATCHED TO ISOLATE THE DAMAGED SECTION BY CLOSING THE UPSTREAM AND DOWNSTREAM BLOCK VALVES WHICH OCCURRED AT 18:50 AND 19:16 RESPECTIVELY. APPROXIMATELY 9 MILES OF 8 INCH PIPELINE WAS BLOCKED IN. THE MCKENZIE COUNTY, NORTH DAKOTA, EMERGENCY MANAGER, COUNTY SHERRIFFS DEPARTMENT AND THE WATFORD CITY FIRE DEPARTMENT WERE NOTIFIED AND ARRIVED ON SITE TO ASSIST AS NECESSARY. NORTH DAKOTA STATE HIGHWAY 34 WAS CLOSED AT APPROXIMATELY 18:19 TO PREVENT TRAFFIC FROM ACCIDENTLY ACCESSING THE RELEASE SITE. ONE LOCAL RESIDENT, LOCATED APPROXIMATELY 3000 FEET TO THE NORTH OF THE RELEASE, WAS ASKED TO SHELTER IN PLACE UNTIL SUCH TIME AS THE EXTENT OF THE RELEASE WAS DETERMINED. AT APPROXIMATELY 21:15 THE MCKENZIE COUNTY EMERGENCY MANAGER NOTIFIED ONEOK PERSONNEL THAT HE WAS GOING TO RELEASE THE EMERGENCY PERSONNEL AS HE BELIEVED ONEOK HAD SECURED THE SITE. ONEOK EMPLOYEES REMAINED ON SITE AT THE LOCATION AND CONTINUED TO MONITOR THE HYDROCARBON VAPORS UNTIL THE DAMAGE SECTION WAS REMOVED AND REPLACED ON JULY 30, 2017. ONCE ONEOK WAS ABLE TO EXCAVATE THE LOCATION AND IDENTIFY THE LOCATION OF THE RELEASE, IT WAS DETERMINED THE BORING STEM OF DRILL HEAD USED BY CARSTENSEN CONSTRUCTION HAD COME INTO CONTACT WITH THE BOTTOM OF THE ONEOK PIPELINE AND HAD WORN THROUGH THE WALL OF THE PIPE CAUSING THE RELEASE. ON COMPLETION OF THE EXCAVATION, THE BOTTOM OF THE ONEOK PIPELINE WAS DETERMINED TO BE 7 FEET 6 _ INCHES BELOW THE SURFACE. THIS WAS THE SAME LOCATION THAT CARSTENSEN CONSTRUCTIONS TOOL HEAD LOCATOR HAD IDENTIFIED THE BORE HEAD TO BE AT A DEPTH OF 15 FEET 8 INCHES, WHICH SHOULD HAVE ALLOWED FOR ADEQUATE CLEARANCE FOR THE CROSSING. THE ISOLATED SECTION OF PIPE WAS PURGED OF HYDROCARBONS WITH NITROGEN AND THE DAMAG

YES

NO

Yes

47.66768465

-103.205517

20170260

2/1/2018

PHMSA

71

7/27/2017

HARVEST PIPELINE COMPANY

LA

CRUDE OIL

0.9

466694.1926

0

0

EXCAVATION DAMAGE

AT 10:15 ON JULY 27TH THE AERIAL PATROL IDENTIFIED A SHEEN ON THE WATER OVER THE HARVEST BOA PIPELINE. ONCE IDENTIFIED THE CONTROL ROOM IMMEDIATELY SHUT-IN THE PIPELINE WHILE FIELD OPERATIONS INVESTIGATED. AT 11:08 IS WAS DETERMINED TO BE A LEAK AND THE PIPELINE WAS ISOLATED. THE PIPE WAS BROUGHT TO THE SURFACE AND A GOUGE WAS IDENTIFIED. AFTER FURTHER INSPECTION A CRACK WAS IDENTIFIED IN THE GOUGE. THE PIECE OF PIPE WAS REMOVED AND REPLACED. THERE WAS LESS THAN 1 BBL OF OIL RELEASED AND IT WAS CLEANED UP PROMPTLY. OPERATIONS WILL CONTINUE TO MONITOR ALL OF ITS PIPELINES DILIGENTLY WHILE PAYING CONTINUED CLOSE ATTENTION TO PATROLS AND ONE CALLS.

YES

NO

Yes

29.32114

-89.78005

20170251

2/1/2018

PHMSA

72

7/24/2017

ONEOK NGL PIPELINE, LLC

NM

Highly Volatile Liquid (such as ethane, butane, propane)

3

76138.4303

0

0

2017

CORROSION FAILURE

AT APPROXIMATELY 10:10 JULY 24, 2017 LOCAL TIME A WELL PUMPER CONTACTED THE ONEOK PIPELINE CONTROL CENTER TO REPORT HE HAD DISCOVERED AN ICE BALL OVER THE ONEOK ARTESIA LATERAL RIGHT OF WAY AT MILE POST 77. LOCAL ONEOK OPERATIONS PERSONNEL WERE DISPATCHED TO THE LOCATION AND CONFIRMED THE RELEASE WAS ON THE ONEOK 6" ARTESIA LATERAL. ONEOK OPERATIONS PERSONNEL MONITORED THE LOCATION UNTIL THE LINE COULD BE SHUT DOWN AND DE-PRESSURED. THE ONEOK LINE WAS EXCAVATED FOR REPAIR, AND IT WAS DETERMINED THE CAUSE OF THE RELEASE WAS LOCALIZED CORROSION. ONEOKS RECTIFIER AND GROUND BED PROVIDING CATHODIC PROTECTION CURRENT FOR THIS SEGMENT OF THE ARTESIA LATERAL HAD REACHED THE END OF THEIR EFFECTIVE LIFESPANS AND WERE SCHEDULED FOR REPLACEMENT IN THE THIRD QUARTER OF 2017. SIMULTANEOUSLY, ONEOKS INVESTIGATION OF THE RELEASE DETERMINED THAT A PIPELINE OPERATOR WITH MULTIPLE ASSETS CROSSING AND SHARING RIGHT OF WAY WITH THE ARTESIA LATERAL HAD REPLACED AND INCREASED THE CURRENT OUTPUT OF ITS NEARBY DEEP WELL GROUND BED AND RECTIFIER. THESE CONDITIONS LED TO STRAY CURRENT INTERFERENCE, RESULTING IN THE CORROSION THAT WAS THE SOURCE OF THE RELEASE. ONEOK CORROSION SPECIALISTS AND TECHNICIANS WORKED WITH THE OPERATOR OF THE FOREIGN PIPELINES TO MITIGATE THE INTERFERENCE AS WELL EXPEDITING THE REPLACEMENT OF THE GROUND BED WHICH WAS COMPLETED ON JULY 27. THE DAMAGED SECTION OF PIPELINE WAS REMOVED AND REPLACED WITH NEW PRE-TESTED PIPE AND THE PIPELINE WAS RETURNED TO SERVICE ON AUGUST 2ND, 2017 AT APPROXIMATELY 11:00 AM.

YES

NO

Yes

32.778549

-104.242702

20170258

2/1/2018

PHMSA

73

7/21/2017

ENBRIDGE STORAGE (CUSHING) L.L.C.

OK

CRUDE OIL

0

133310.0408

0

0

1994

CORROSION FAILURE

ON JULY 21, 2017 AT 14:50 CDT, A MECHANICAL TECHNICIAN IN THE VICINITY HEARD SOMETHING BLOW OUT ON METER #2 IN MANIFOLD 154 LOCATED IN THE CUSHING NORTH TERMINAL. CRUDE OIL STARTED SPRAYING OUT ONTO THE GROUND SO THE MECHANICAL TECHNICIAN QUICKLY OPENED A DRAIN VALVE ON THE STRAINER IN ORDER TO RELIEVE PRESSURE AND THEN CALLED THE CUSHING CONTROL CENTER. THE SYSTEM WAS SHUTDOWN AT THIS TIME FOR SCHEDULED MAINTENANCE. ADDITIONAL STEPS WERE TAKEN TO STOP FURTHER RELEASE OF PRODUCT AND SECURE THE SITE LOCATION INCLUDED ISOLATING VALVES AND DRAINING THE PIPE SECTION. IT WAS DETERMINED THAT THE LEAK OCCURRED ON METER #2 IN MANIFOLD 154 AT THE METER CASING WELDED 90 DEGREE ELBOW THREADED FITTING, WHICH IS PART OF THE FACTORY METER CASING COMPONENT. APPROXIMATELY 20 GALLONS OF CRUDE WAS RELEASED. CLEAN-UP WAS COMPLETED ON JULY 24, 2017 AND CONTAMINATED SOIL PROPERLY DISPOSED OF. UT WAS CONDUCTED ON THE ELBOW BY AN NDE TECHNICIAN AND THE LEAK CAUSE WAS CONFIRMED TO BE DUE TO INTERNAL CORROSION. METER #1 WAS PLACED INTO SERVICE ON JULY 22, 2017 IN PLACE OF METER #2 UNTIL REPAIRS ARE COMPLETED AS DIRECTED BY MARATHON (OWNER OF LINE 51 PIPELINE). THE NRC WAS NOTIFIED AT 17:01 CDT ON JULY 21, 2017 (#1184838) WHEN IT WAS DETERMINED COSTS COULD EXCEED THE $50,000 THRESHOLD. THE NRC FOLLOW-UP CALL WAS MADE AT 8:39 CDT ON JULY 22, 2017 (#1184864).

YES

NO

Yes

35.95916

-96.75287

20170255

2/1/2018

PHMSA

74

7/20/2017

PLAINS PIPELINE, L.P.

TX

CRUDE OIL

30

30209.76428

0

0

2012

EQUIPMENT FAILURE

APPROXIMATELY 300 BBLS OF CRUDE OIL WERE RELEASED FROM A TANK MIXER SEAL. IT WAS LATER DISCOVERED THAT THE BOLTS HAD BECOME DISCONNECTED. THIS MIXER WILL BE REPLACED WITH A NEW, PLENTY, MIXER.

ON 07/19/17 AT 14:17 CST, THE ALPHARETTA CONTROL CENTER WAS NOTIFIED BY A COLONIAL INSPECTOR OF GASOLINE ODORS DISCOVERED DURING A PIG DIG AND A REQUEST WAS MADE TO SHUT THE LINE DOWN. THE CONTROL CENTER INITIATED AN ORDERLY SHUTDOWN OF LINE 1 AND REMOTE ISOLATION OF THE SEGMENT STARTING AT 14:20. AT APPROXIMATELY 22:50 FIELD OBSERVERS CONFIRMED THE LEAK. SINCE IT WAS ANTICIPATED THAT COST WOULD EXCEED $50,000, THE NRC AND PHMSA WERE NOTIFIED AND SUBSEQUENT COURTESY NOTIFICATIONS WERE MADE TO ADEM, COUNTY EMA AND LOCAL FIRE DEPARTMENT. AT NO TIME WAS ANY FREE STANDING PRODUCT OR LIQUID OBSERVED, NOR WAS ANY LEL READING DETECTED DURING MONITORING; ONLY AN ODOR IN THE SOIL. REPAIR WAS A TYPE B SLEEVE. REPAIR WAS COMPLETE AT 7/20/17 AT APPROXIMATELY 23:48 AND LINE 1 WAS RESTARTED AT APPROXIMATELY 00:17 ON 7/21/17. CAUSE OF RELEASE STILL BEING INVESTIGATED. AS OF 7/28/17 THE TOTAL ESTIMATED RELEASE VOLUME IS 462 GALLONS. THE 462 GALLONS IS CONTAINED IN APPROXIMATELY 3750 TONS OF SOIL WHICH WILL BE REMOVED. A FINAL VOLUME WILL BE CALCULATED ONCE ALL CONTAMINATED SOIL IS REMOVED AND ALL LAB RESULTS ARE AVAILABLE.

YES

NO

Yes

33.655017

-85.485179

20170257

2/1/2018

PHMSA

76

7/17/2017

ENTERPRISE PRODUCTS OPERATING LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

10

4519.18425

0

0

2014

EQUIPMENT FAILURE

ON JULY 17, 2017 AT APPROXIMATELY 20:40 PIPELINE CONTROL RECEIVED A HIGH GAS ALARM ON THE P62 PUMP AT BEAUMONT TERMINAL. TECHNICIAN ARRIVED ON SITE AND DISCOVERED A RELEASE OF ETHANE THAT WAS ESTIMATED TO BE APPROXIMATELY 10 BARRELS. THE CAUSE OF THE LEAK WAS DETERMINED TO BE CRACKED WELDS ON THREE OF THE TUBING CONNECTIONS ON THE PUMP- THE COOLING LOOP, THE SEAL FLUSH TUBING LOOP, AND THE 1" BALANCE LINE ON TOP OF THE PUMP. THE PUMP WAS PLACED IN LOCK-OUT TAG-OUT, THE TUBING CONNECTIONS WERE REPLACED, AND THE PUMP WAS RETURNED TO SERVICE.

YES

NO

Yes

30.01388

-94.05363

20170250

2/1/2018

PHMSA

77

7/17/2017

ENTERPRISE PRODUCTS OPERATING LLC

NM

Highly Volatile Liquid (such as ethane, butane, propane)

0

3438.509755

0

0

EQUIPMENT FAILURE

ON 07/17/17 AT 7:45 AM, ENTERPRISE DISCOVERED THE DENSITOMETER LEAKING.THE TECHNICIANS REMOVED AND REPLACED THE DENSITOMETER. THE CAUSE OF THE DENSITOMETER FAILURE HAS NOT BEEN DETERMINED YET, THE DENSITOMETER THAT FAILED WILL BE SENT TO THE MANUFACTURER FOR INVESTIGATIONS AND A SUPPLEMENTAL REPORT WILL BE CREATED.

YES

NO

Yes

36.758892

-108.365549

20170247

2/1/2018

PHMSA

78

7/15/2017

ENBRIDGE STORAGE (CUSHING) L.L.C.

OK

CRUDE OIL

0

1204705.471

0

0

1950

OTHER INCIDENT CAUSE

ON JULY 15, 2017 AT APPROXIMATELY 10:15 CDT, AN OPERATION TECHNICIAN CALLED THE CUSHING CONTROL CENTER (CCC) TO REPORT HEAVY CRUDE OIL ON THE BASIN POND LOCATED SOUTHWEST OF MANIFOLD 227 IN THE CUSHING SOUTH TERMINAL. THE CCC NOTIFIED THE ON-CALL PERSONNEL MANAGER WHO STARTED THE INCIDENT COMMUNICATION PROCESS. ENBRIDGE ON-SITE PERSONNEL ESTIMATED THE RELEASE TO BE APPROXIMATELY 451 BARRELS OF HEAVY CRUDE OIL LOCATED IN THE POND AND CORRESPONDING GROUND AREA. WHILE THE #3 HEADER BETWEEN MANIFOLD 227 AND 229 WAS NOT IN OPERATIONAL USE AND WAS ISOLATED, A LOTO OF ADDITIONAL HAND VALVES WAS COMPLETED TO FURTHER ISOLATE THE SUSPECTED LEAK LOCATION IN ORDER TO BEGIN THE RECOVERY PROCESS AND SAFELY DETERMINE THE EXACT RELEASE LOCATION. IT WAS DETERMINED THAT THE RELEASE POINT OCCURRED ON A BELOW GRADE 20" TRANSFER LINE (PRESSURIZED DEAD LEG SEGMENT) RUNNING BETWEEN MANIFOLDS 227 AND 229. THE RELEASE POINT WAS NOTED TO BE IN THE 6:00 POSITION. THE CAUSE OF THE RELEASE IS SUSPECTED TO BE INTERNAL CORROSION, BUT WILL BE VERIFIED VIA A METALLURGICAL ANALYSIS. IMMEDIATE REMEDIATION CONSISTED OF ISOLATING THE TRANSFER LINE SEGMENT AND INSTALLING A LEAK CLAMP TO STOP FURTHER RELEASE OF PRODUCT. ENBRIDGE HAD PLANNED TO PERMANENTLY REMOVE THIS DEAD LEG SEGMENT (TARGET DATE YEAR-END 2017). ALL CRUDE OIL WAS CONTAINED ON ENBRIDGE PROPERTY WITHIN THE BASIN POND CONTAINMENT AREA (SOUTHWEST OF TANK #3332) AND CLEAN-UP WAS COMPLETED ON JULY 22, 2017. APPROXIMATELY 371 BARRELS OF PRODUCT WAS RECOVERED AND RETURNED TO THE SYSTEM WITH THE REMAINING 80 BARRELS OF CRUDE OIL AND CONTAMINATED SOIL BEING PROPERLY DEPOSED OF. EXTERNAL NOTIFICATIONS WERE MADE TO NRC ON JULY 15, 2017 AT 12:18 CDT (#1184164) AND THE OKLAHOMA CORPORATION COMMISSION (OCC) # 18517-OGD-010341. THE NRC FOLLOW-UP (#1184349) WAS PLACED ON JULY 17, 2017 AT 15:15 CDT.

YES

NO

Yes

35.56249

-96.451911

20170249

2/1/2018

PHMSA

79

7/14/2017

COUNTRYMARK REFINING AND LOGISTICS, LLC

IL

CRUDE OIL

0

9038.3685

0

0

2004

INCORRECT OPERATION

ON THE EVENING OF JULY 13, A THUNDERSTORM WENT THROUGH CAUSING THE 2 MAINLINE PUMPS THAT PUMP OUT OF JOHNSONVILLE STATION TO SHUT-OFF, LEAVING ONLY THE CHARGE PUMP (TANK TO MAINLINE PUMPS) RUNNING. THE STORM ALSO CAUSED THE SCADA SYSTEM AT JOHNSONVILLE TO GO INTO PCU SCAN AND FOR THE HIGH TANK ALARM TO GIVE FALSE ALARMS. THE CHARGE PUMP AT JOHNSONVILLE WAS PUMPING OUT APPROXIMATELY 80 BBLS EVERY 2 HOURS. HOWEVER, THE UPSTREAM CLAY CITY PUMP STATION WAS PUMPING APPROXIMATELY 350 BBLS INTO THE JOHNSONVILLE TANK EVERY 2 HOURS. THE CONTROLLER TAKES BARREL COUNTS FROM THE SCADA SYSTEM EVERY 2 HOURS TO DETERMINE WHAT IS GOING INTO A TANK AND WHAT IS GOING OUT OF THAT TANK. THE QUALIFIED CONTROLLER WAS TRAINING A NEW CONTROLLER THAT EVENING. THE TRAINEE FAILED TO RECOGNIZE THAT SIGNIFICANTLY MORE BBLS WERE BEING PUMPED INTO THE TANK AT JOHNSONVILLE THAN WERE BEING PUMPED OUT. THE QUALIFIED CONTROLLER FAILED TO OVERSEE THE TRAINEES ACTIONS. WHEN THE TRAINEES SHIFT WAS OVER, THE QUALIFIED CONTROLLER WENT TO GET BARREL COUNTS AND IMMEDIATELY NOTICED THE ISSUE. HE SHUT DOWN THE CLAY CITY PUMP THAT WAS PUMPING INTO THE JOHNSONVILLE TANK, CALLED THE LOCAL GAUGER TO GO ON-SITE TO ASSESS THE SITUATION, AND CALLED THE PIPELINE MAINTENANCE MANAGER TO HAVE EMERGENCY RESPONSE PERSONNEL ON THE WAY. THE GAUGER REPORTED THAT CRUDE OIL WAS OUT, BUT WAS ALL CONTAINED INSIDE THE TANK FIREWALL. THE OIL WAS RECOVERED BY VACUUM TRUCK AND PUT INTO A FRAC TANK THAT HAPPENED TO BE ON SITE FOR OTHER MAINTENANCE ACTIVITIES. THE RECOVERED OIL WAS THEN PUT BACK INTO THE TANK. NO SOIL CONTAMINATION WAS ASSOCIATED WITH THIS ACCIDENT. AN INVESTIGATION INTO THE INCIDENT HAS BEEN COMPLETED. THE INVESTIGATION FOUND THAT ULTIMATELY THE QUALIFIED CONTROLLER KNEW HIS ROLE AS A TRAINER AND THAT HE WAS ULTIMATELY RESPONSIBLE FOR THE SAFE OPERATION OF THE PIPELINE, BUT FAILED TO FULFILL THAT ROLE AND DID NOT PROPERLY SUPERVISE THE TRAINEE'S ACTIONS.

SEP. 1, 2017, DURING THE INVESTIGATION OF A NON RELATED RTTM LEAK DETECTION ALARM, SCADA PERSONNEL SHUT DOWN WR-01 PIPELINE FROM PONCA CITY, OK TO GLENPOOL, OK TO PERFORM A STAND-UP INTEGRITY TEST. THE SEGMENT FROM MP 52 TO MP 72 WAS DETERMINED TO BE A SUSPECT OF A LEAK AND PRESSURE WAS ADDED TO ASSIST IN INTEGRITY VERIFICATION. UPON RE-PRESSURIZATION OF THE SEGMENT, SIMILAR PRESSURE LOSS WAS OBSERVED. HISTORICAL DATA WAS REVIEWED AND LINE FLYER WAS ENGAGED FOR OVER FLIGHT THE FOLLOWING MORNING. ON 9-2-2017 AT APP. 09:00, LINE FLYER REPORTED DEAD VEGETATION NEAR MP 56. FIELD PERSONNEL ARRIVED ON SITE AT APP. 09:45 AND BEGAN RESPONSE AND CLEAN-UP ACTIVITIES. PIPELINE WAS ALREADY SHUTDOWN AND THE DOWNSTREAM VALVES WERE THEN OPENED TO RELIEVE PRESSURE. UPON EXCAVATION, AN EXTERNAL CORROSION THROUGH-WALL FEATURE WAS DISCOVERED. 9-3-2017, PLIDCO CLAMP WAS INSTALLED AND SUCCESSFULLY PASSED PRESSURE TEST. PIPELINE WAS RESTARTED FOR NORMAL OPERATION AT APP. 16:20. PRELIMINARY VISUAL FIELD INSPECTION INDICATES EXTERNAL CORROSION. THIS WILL BE VERIFIED VIA METALLURGICAL ANALYSIS WHEN FAILED SEGMENT IS EVENTUALLY REMOVED. TARGET DATE FOR CUTOUT IS 10-17-2017 PART A, ITEM 4 "LOCAL TIME AND DATE OF INCIDENT" IS LISTED AS 7-13-2017. THIS DATE WAS DETERMINED BASED ON INFORMATION GATHERED DURING THE INVESTIGATION.

YES

NO

Yes

36.2908134

-96.29609582

20170322

2/1/2018

PHMSA

81

7/13/2017

ENTERPRISE PRODUCTS OPERATING LLC

NM

Highly Volatile Liquid (such as ethane, butane, propane)

0

589.4588152

0

0

EQUIPMENT FAILURE

ON 07/13/17, 3RD PARTY PLANT PERSONNEL DISCOVERED METER RUN SAMPLER LEAKING AND ALERTED ENTERPRISE. UPON ARRIVAL, ENTERPRISE DISCOVERED A FROST BALL ON THE SAMPLER AND IMMEDIATELY SHUTDOWN THE PLANT RECEIPT POINT AND ISOLATED THE SAMPLER. TECHNICIANS REMOVED AND REPLACED THE DAMAGED BOLT ON THE SAMPLER AND BROUGHT THE PLANT BACK ONLINE.TIME AT DISCOVERY 11:10 AM AND TIME OF ISOLATION 11:40 AM.

YES

NO

Yes

36.759385

-108.365402

20170246

2/1/2018

PHMSA

82

7/13/2017

MAGELLAN CRUDE OIL PIPELINE COMPANY, L.P.

TX

CRUDE OIL

469

2619004.813

0

0

EXCAVATION DAMAGE

ON 7/13/17, MAGELLAN'S CONTRACTOR WAS PERFORMING EXCAVATION ON THE EAST HOUSTON TO EL PASO 18" LINE SECTION AT MP 141.8. THE CONTRACTOR'S EXCAVATION EQUIPMENT MADE CONTACT WITH A MAINLINE PIPE TAP CAUSING A RELEASE. THE PIPELINE WAS ACTIVE AT THE TIME OF THE EVENT. OPERATIONS CONTROL ISSUED A CODE RED BASED ON A CALL FROM FIELD PERSONNEL SAYING THE CONTRACTOR STRUCK THE PIPELINE. PSAP (PUBLIC ACCESS SAFETY POINT) AND NRC WERE NOTIFIED. THE NRC REPORT NUMBER IS 1183933. HWY 20 WAS CLOSED DURING THE INCIDENT. WITHIN _ MILE RADIUS OF THE INCIDENT, 14 FAMILIES WERE EVACUATED AND 1 SHELTERED IN PLACE. EVACUEES WERE ALLOWED TO RETURN TO THEIR HOMES THE SAME EVENING. RECORDS INDICATE THE MAINLINE PIPE TAP WAS INSTALLED PRIOR TO 1995. THE SECTION OF THE PIPE THAT INCLUDED THE PIPE TAP WAS CUT OUT AND REPLACED WITH A PRE-TESTED PIECE OF PIPE. APPROXIMATELY 3000 CUBIC YARDS OF SOIL WAS REMEDIATED

YES

NO

Yes

30.085836

-97.386029

20170243

2/1/2018

PHMSA

83

7/13/2017

ENBRIDGE ENERGY, LIMITED PARTNERSHIP

IL

CRUDE OIL

0

347730.597

0

0

1996

NATURAL FORCE DAMAGE

ON JULY 13, 2017 AT 10:51 AM, ENBRIDGE LOCAL STATION TECHNICIAN NOTICED OIL SHEEN ON STANDING WATER IN THE GRAVELED AREA NEAR LINE 14 TRAP AND PCV AREA AT THE MOKENA STATION. STATION TECHNICIAN CALLED THE EDMONTON CONTROL CENTER AND LINE 14 WAS IMMEDIATELY SHUT DOWN AND THE STATION WAS ISOLATED. CONTRACT RESOURCES AND ENBRIDGE PIPELINE MAINTENANCE CREWS RESPONDED AND DISCOVERED THE SOURCE TO BE A SMALL DIAMETER THREADED CONNECTION - VALVE PACKING AND GREASE FITTING ON THE BURIED PORTION OF VALVE 461.17-14/6-XV. THE MAJORITY OF THE 67 GALLONS RELEASED REMAINED ON SITE; HOWEVER, APPROXIMATELY 1.47 GALLONS MADE IT THROUGH THE OUTFLOW OF CONTAINMENT POND AND OFF SITE. THE SMALL DIAMETER THREADED FITTING AND PIPING THAT WAS LEAKING WAS REMOVED AND A THREADED PLUG WAS INSTALLED. THE REPAIRS WILL BE COMPLETED THROUGH AN OUTAGE REQUEST. THE CAUSE OF THE RELEASE HAS BEEN DETERMINED TO BE DUE TO FROST HEAVE. APPROXIMATELY 195 TONS OF CONTAMINATED SOIL AND VEGETATION WAS DISPOSED OF AT AN APPROVED SITE. THE CRUDE OIL THAT LEFT THE SITE WAS CLEANED UP THROUGH REMOVAL OF VEGETATION AND ABSORBING THE RESIDUAL WITH ABSORBENT PADS.

YES

NO

Yes

41.553488

-87.885245

20170242

2/1/2018

PHMSA

84

7/9/2017

ENTERPRISE CRUDE PIPELINE LLC

TX

CRUDE OIL

0

466654.8954

0

0

2014

MATERIAL FAILURE OF PIPE OR WELD

ON 07-09-2017 AT APPROXIMATELY 07:00 ENTERPRISE OPERATIONS WAS NOTIFIED OF CRUDE OIL ON THE GROUND INSIDE OF VALERO'S FACILITY. OPERATING PERSONNEL WERE DISPATCHED TO THE AREA TO START THE INVESTIGATION INTO THE SOURCE. ENTERPRISE HAS A DELIVERY SKID LOCATED INSIDE VALERO'S FACILITY WHICH WAS NOT MAKING A MOVEMENT AT THE TIME OF DISCOVERY. IN THE AREA THAT THE CRUDE WAS DISCOVERED VALERO HAS MANY FACILITY LINES THAT RUN TO AND FROM DIFFERENT POINTS WITHIN THEIR FACILITY. AT APPROXIMATELY 1100 HOURS ON THE 9TH IT WAS DETERMINED THAT THE SOURCE OF THE LEAK WAS ON AN ENTERPRISE ASSET AND NOT VALERO. AT THAT TIME THE NRC NOTIFICATION WAS IMMEDIATELY MADE RESULTING IN REPORT NUMBER 1183549. THE 48 HR UPDATE WAS COMPLETED ON 07-10-17 RESULTING IN REPORT NUMBER 1183669. A C-SCAN OF THE PIPING WAS CONDUCTED TO DETERMINE IF INTERNAL CORROSION WAS THE CAUSE OF THE RELEASE. AFTER REVIEWING THE RESULTS OF THE SCAN, INTERNAL CORROSION WAS RULED OUT DUE TO THE FACT THAT THERE WERE NO INDICATIONS OF WALL LOSS OTHER THAN THE PINHOLE. A VISUAL EXAMINATION OF THE PIPING ALSO RULED OUT EXTERNAL CORROSION. A TYPE B SLEEVE WAS APPROVED AND WELDED ONTO THE PIPE AS THE PERMANENT REPAIR.

YES

NO

Yes

29.3652167

-94.9163583

20170238

2/1/2018

PHMSA

85

7/6/2017

PLAINS MARKETING, L.P.

CA

CRUDE OIL

4

167209.8173

0

0

1991

CORROSION FAILURE

APPROXIMATELY 24 BBLS OF CRUDE OIL WERE RELEASED FROM A BURIED SECTION OF INACTIVE STATION PIPE AS A RESULT OF INTERNAL CORROSION. CONTAINMENT AND CLEANUP COMMENCED WITHIN MINUTES OF DISCOVERY AND THE NATIONAL RESPONSE CENTER WAS NOTIFIED ONCE COSTS WERE DETERMINED TO EXCEED THE $50,000 THRESHOLD. NRC ASSIGNED REPORT NUMBER 1183255 AND THEN LATER ASSIGNED REPORT NUMBER 1183420 FOR THE SECOND NOTIFICATION. THE FAILED SECTION OF PIPE HAS NOW BEEN PURGED AND ABANDONED.

YES

NO

Yes

35.054057

-119.31482

20170235

2/1/2018

PHMSA

86

6/28/2017

PLAINS PIPELINE, L.P.

OK

CRUDE OIL

434

635976.9401

0

0

1960

CORROSION FAILURE

APPROXIMATELY 740 BBLS OF CRUDE OIL WERE RELEASED AS A RESULT OF INTERNAL CORROSION. THE FAILED SEGMENT OF PIPE HAS BEEN SENT TO A LAB TO UNDERGO METALLURGICAL ANALYSIS; THEREFORE, A SUPPLEMENTAL REPORT WILL BE SUBMITTED ONCE THE CAUSE IS CONFIRMED. THE NATIONAL RESPONSE CENTER (NRC) WAS NOTIFIED AND ASSIGNED INITIAL REPORT #1182539. A FOLLOW-UP CALL TO THE NRC, ASSIGNED REPORT #1182742.

YES

NO

Yes

35.938783

-97.994858

20170232

2/1/2018

PHMSA

87

6/28/2017

WILLIAMS FIELD SERVICES

KS

Highly Volatile Liquid (such as ethane, butane, propane)

184

17548.18893

0

0

2008

EQUIPMENT FAILURE

OPERATIONS TECHNICIAN WAS NOTIFIED OF POSSIBLE LEAK AT FACILITY BY PIPELINE CONTROL AT 10:54PM. PIPELINE CONTROL HAD BEEN NOTIFIED BY CUSTOMER OPERATION PERSONNEL OF LEAK IN OPPL FACILITY. OPPL FACILITY WAS ESD'D AT 11:15 PM AT OPERATION TECHNICIAN'S REQUEST BASE ON INFORMATION OBTAINED FROM CUSTOMER OPERATIONS. PIPELINE CONTROL SHUT DOWN THE FACILITY AND PRODUCT WAS ALLOWED TO VENT. STATION PIPING WAS VENTED TO 190 PSI AND OPERATIONS PERSONNEL ISOLATED THE AFFECTED SECTION. AFTER SECTION WAS BLOWN DOWN THE AFFECTED PIPE NIPPLE WAS REMOVED AND REPLACED. FLOW TO FACILITY WAS RESTORED AT 2:50 AM 6/29/2017. NRC REPORT 1182661 48-HOUR FOLLOW-UP MADE ON 6/29/2017 AT 13:26. AT THE BUSHTON METER, THE THERMAL RELIEF PIPING WAS REMOVED AND ADMINISTRATIVE PROCEDURES (WILLIAMS' CAR SEAL PROGRAM) WERE PUT IN PLACE TO HANDLE THERMAL RELIEF REQUIREMENTS; THIS WAS DONE BY TAGGING VALVES OPEN THAT ARE NEEDED FOR THERMAL RELIEF. P&IDS WERE ALSO MARKED UP TO SHOW THE LOCATIONS OF THESE VALVES AS WELL AS AN MOC TO COVER THE CHANGES. THE FAILED PIPE NIPPLE THAT WAS REMOVED WAS REPLACED BY A SCHEDULE 160 NIPPLE AND VALVE AND WAS PLUGGED. ALL SITES ON OPPL ARE CURRENTLY BEING SURVEYED FOR THERMAL RELIEF LINES THAT ARE NOT ADEQUATELY SUPPORTED AND A PLAN IS IN PLACE TO REMOVE THOSE THAT CAN BE REMOVED AND ADDING SUPPORTS FOR THE OTHERS THAT CAN'T BE REMOVED BUT WHERE THERMAL RELIEF IS NECESSARY.

YES

NO

Yes

38.521397

-98.358986

20170230

2/1/2018

PHMSA

88

6/22/2017

ENTERPRISE CRUDE PIPELINE LLC

TX

CRUDE OIL

0

92612.82175

0

0

1976

CORROSION FAILURE

ON 06/24/2017 AT APPROXIMATELY 19:00 LOCAL OPERATIONS DISCOVERED CRUDE OIL ON TOP OF THE SOIL NEAR THE 12" RELIEF LINE. ALL MOVEMENTS WERE SHUTDOWN UNTIL THE SOURCE COULD BE IDENTIFIED. AT 20:10 IT WAS DETERMINED THAT THE COST OF REPAIR WOULD EXCEED $50,000 AND THE NRC NOTIFICATION WAS IMMEDIATELY MADE. AFTER EXCAVATION, THE SOURCE WAS IDENTIFIED TO BE A NICKEL SIZE HOLE AT THE 6 O'CLOCK POSITION ON THE 12" RELIEF LINE. A PLIDCO CLAMP WAS INSTALLED AND THE LINE RETURNED TO SERVICE SHORTLY AFTER. ALL MOVEMENTS WERE ABLE TO RESUME AT 11:47 ON 06-25-17. A FINAL REPAIR WILL BE COMPLETED AT A LATER DATE. THE 48 HR NRC UPDATE WAS COMPLETED AT 09:15 ON 06-24-17, REPORT NUMBER 1189242.

YES

NO

Yes

28.949004

-95.430746

20170218

2/1/2018

PHMSA

89

6/19/2017

DAPL-ETCO OPERATIONS MANAGEMENT, LLC

TN

CRUDE OIL

0

14736.47038

0

0

2016

EQUIPMENT FAILURE

DURING A ROUTINE STATION INSPECTION ON 6/19/2017, OPERATION PERSONNEL DISCOVERED A RELEASE AT THE DYERSBURG PUMP STATION. INVESTIGATION REVEALED THAT APPROXIMATELY 119 BARRELS WERE RELEASED FROM A BROKEN PIPE NIPPLE THREADED CONNECTION ON THE PUMP DISCHARGE TRANSMITTER. THE OIL WAS CONTAINED WITHIN THE PUMP STATION AND RECOVERED VIA VACUUM TRUCK AND REINJECTED INTO THE SYSTEM. VIBRATION FROM THE PUMP AND LACK OF SUPPORT TO THE PIPING CONTRIBUTED TO THE FAILURE OF THE NIPPLE. IT WAS DETERMINED THAT THIS PRESSURE TRANSMITTER AND ASSOCIATED PIPING COULD BE ELIMINATED. THERE IS A REDUNDANT PRESSURE TRANSMITTER JUST DOWNSTREAM THAT WILL BE UTILIZED TO MONITOR DISCHARGE PRESSURE. THIS TRANSMITTER IS LOCATED AT A DISTANCE FROM THE PUMP SUFFICIENT TO AVOID VIBRATION ISSUES. ALL OTHER PUMP STATIONS ON THE ETCOP SYSTEM WERE INSPECTED FOR SIMILAR DESIGN AND WHERE FOUND THE TRANSMITTER AND PIPING WAS ELIMINATED TO AVOID RECURRENCE OF SIMILAR TYPE OF FAILURE.

YES

NO

Yes

35.938338

-89.306311

20170212

2/1/2018

PHMSA

90

6/16/2017

PLAINS PIPELINE, L.P.

TX

CRUDE OIL

0

113249.7749

0

0

2014

CORROSION FAILURE

APPROXIMATELY 200 BBLS OF CRUDE OIL WERE RELEASED AS A RESULT OF INTERNAL CORROSION. THE FAILED PIPE WILL BE CUT OUT AND SENT TO A LAB FOR METALLURGICAL ANALYSIS. A SUPPLEMENTAL REPORT WILL BE SUBMITTED ONCE THE RESULTS OF THE ANALYSIS ARE FINAL. THE NATIONAL RESPONSE CENTER (NRC) WAS NOTIFIED OF THE RELEASE AS A RESULT OF COSTS EXCEEDING $50,000, AND ASSIGNED REPORT NUMBER 1181390. THERE WERE TWO ADDITIONAL NOTIFICATIONS MADE, REPORT NUMBERS 1181393 AND 1181493.

YES

NO

Yes

28.52499526

-99.21907671

20170216

2/1/2018

PHMSA

91

6/16/2017

PLAINS PIPELINE, L.P.

NM

CRUDE OIL

0

85864.50075

0

0

2015

INCORRECT OPERATION

APPROXIMATELY 50 BBLS OF CRUDE OIL WERE RELEASED WHEN EXPANSION JOINT ON SUCTION SIDE OF MAINLINE PUMP AT LYNCH 176 STATION FAILED. THE VALVE TO LOW PRESSURE RELIEF WAS FOUND IN A CLOSED POSITION RESULTING IN A PRESSURE BUILD UP. ALL OIL WAS CONTAINED IN IMPOUNDMENT ON PLAINS PROPERTY. THE SPILL WAS REPORTED TO THE NATIONAL RESPONSE CENTER (NRC) BASED ON THE TOTAL COSTS OF DAMAGE AND CLEANUP EXCEEDING THE $50,000.00 CRITERIA. REPORT NUMBER 1181554 WAS ASSIGNED, AS WELL AS REPORT NUMBER 1181802 UPON THE SECOND, 48 HOUR, NOTIFICATION.

YES

NO

Yes

32.522267

-103.524841

20170214

2/1/2018

PHMSA

92

6/13/2017

CHEVRON PIPE LINE CO

LA

Highly Volatile Liquid (such as ethane, butane, propane)

0

0

0

0

2014

NATURAL FORCE DAMAGE

1826-HOMEOWNER CALLS CONTROL CENTER AND INFORMS THEM OF A FLAME AT A VALVE SITE NEAR OUR PIPELINE 1828-1835-CONTROL CENTER CONFIRMS LOCATION AND VALVE SITE 1840-CONTROL CENTER CALL FIELD TEAM MEMBERS TO GO TO HWY 1 VALVE SITE 1845-PAINCOURTVILLE IS ON SITE AND SEND A PICTURE OF FLAME ON VENT STACK TO CONTROL CENTER 1855-2000-CONTROL MAKES APPROPRIATE CALLS TO SUPERVISORS AND MANAGERS 1955-FIELD TEAM MEMBER HAD ARRIVED ON SITE IDENTIFIED IT WAS A SMALL FLAME ON A VENT STACK ANALYZER AND CLOSED TUBING GOING TO VENT STACK TO EXTINGUISH THE FLAME SAFELY. 2037- AFTER IDENTIFYING THERE WAS NO DAMAGE TO EQUIPMENT OR PIPELINE AND NO FURTHER COULD OCCUR FIELD TEAM MEMBERS RELAYED INFORMATION BACK TO CONTROL. FIELD TEAM MEMBERS LEAVE SITE AT THIS TIME.

YES

NO

Yes

30.042587

-91.048746

20170213

2/1/2018

PHMSA

93

5/29/2017

ENTERPRISE PRODUCTS OPERATING LLC

KS

Highly Volatile Liquid (such as ethane, butane, propane)

0

596338.782

0

0

OTHER OUTSIDE FORCE DAMAGE

ON MONDAY 5/29/17, AT 15:22, A CONTRACTOR WAS USING A TRACK HOE TO EXCAVATE THE EAST RED LINE AT MP 69.6 NEAR PARKVILLE, KS. FOR AN INTEGRITY ASSESSMENT (DIG #37). THE CONTRACTOR REPOSITIONED THE TRACK HOE TO CONTINUE THE EXCAVATION. THE REAR OF THE TRACK HOE SUNK INTO MUD THAT WAS SATURATED WITH WATER FROM RECENT RAIN.THE TRACK-HOE OPERATOR THEN NOTICED BUBBLING COMING UP THROUGH THE MUD AND WATER AND HE SUSPECTED A LEAK. THE OPERATOR IMMEDIATELY SHUT DOWN THE TRACK-HOE AND EXITED THE EQUIPMENT. PIPELINE CONTROL WAS NOTIFIED. THE NRC WAS CONTACTED AND A 48-HOUR UPDATE WAS GIVEN. ON 05/29/17, AT 16:00, THIS PIPELINE INCIDENT WAS DEEMED TO BE REPORTABLE TO THE NRC BECAUSE IT WAS LIKELY TO EXCEED $50,000 AND THE CALL WAS MADE TO THE NRC AT 16:35.

ON SATURDAY, 5/20 AT APPROXIMATELY 0735 AFTER THE START-UP OF LS 105/108 (WA-CL 24/20"), A 1' X 1 POOL OF PRODUCT ESTIMATED TO BE 1.5 GALLONS WAS NOTICED AT THE OUTGOING CHECK-VALVE AREA. THE LINE WAS SHUT DOWN AND INTERNAL RELEASE NOTIFICATIONS WERE MADE. THE SITE HAD BEEN EXCAVATED THE PRIOR DAY (THE 19TH) BASED ON A HYDROCARBON "LEL SNIFF" AT THE CHECK VALVE SNIFF TUBE DURING A POST MAINLINE BLOCK VALVE INSPECTION. AFTER THE INVESTIGATION FRIDAY, THE FIELD CREW DID NOT OBSERVE ANY EVIDENCE OF A RELEASE, SO A STATIC PRESSURE TEST WAS CONDUCTED AND COMPLETED SUCCESSFULLY AT 0015, 5/20/2017. THE LINE REMAINED DOWN UNTIL THE RE-START LATER THAT MORNING. AT APPROXIMATELY 0815, KM DETERMINED THE $50K TELEPHONIC CRITERION WOULD LIKELY BE MET DUE TO THE INVESTIGATION EXCAVATION, SO THE NRC NOTIFICATION (#1178847) WAS MADE. THE 48-HOUR PHMSA UPDATE NRC NOTIFICATION (#1178958) WAS MADE MONDAY, THE 22ND CONFIRMING THE INITIAL RELEASE VOLUME.. AFTER REPAIR AND RETURN TO SERVICE (POST 48-HOUR NRC UPDATE), THE KM REMEDIATION GROUP CONDUCTED SAMPLING TO CALCULATE A RELEASE VOLUME OF 1440 GALLONS. (THE SOURCE OF THE RELEASE WAS A FAILED CP SYSTEM EIJ (ELECTRICAL INSULATING JOINT). NOTE: PART A, #4 ORIGINALLY CALLED IN AS THREATENED RELEASE ON 5/19 (NRC#1178759), RE-NOTIFIED WHEN DETERMINED TO MEET THE $50,000 CRITERIA (NRC#1178847) AND UPDATED ON 5/22 (NRC#1178958).

YES

NO

Yes

38.846507

-122.232718

20170196

2/1/2018

PHMSA

95

5/17/2017

ENBRIDGE STORAGE (CUSHING) L.L.C.

OK

CRUDE OIL

0

147757.6763

0

0

2017

EQUIPMENT FAILURE

ON MAY 17, 2017 AT APPROXIMATELY 17:47 CDT, AN ESTIMATED 125 BARRELS OF CRUDE OIL WAS RELEASED FROM THE TEMPORARY TRAP THAT WAS INSTALLED TO RUN A SMART TOOL ON TANK LINE 1049 IN THE CUSHING NORTH TERMINAL. THE RELEASED PRODUCT REMAINED ON ENBRIDGE PROPERTY AND WAS RECOVERED FROM SECONDARY CONTAINMENT IN THE TANK DIKE AREA. THIS RELEASE OCCURRED WHILE ENBRIDGE AND CONTRACTOR PERSONNEL WERE PREPARING TO PERFORM AN INLINE INSPECTION OF TANK LINE 1049. TANK 1049 HAD BEEN ISOLATED FROM TANK LINE 1049 AND A TEMPORARY TRAP AND VALVE HAD BEEN INSTALLED ON THE TANK LINE IN ORDER TO ACCOMMODATE THIS TOOL INSPECTION. ONCE THE TOOL WAS LOADED INTO THE TRAP, THE CREW NOTICED OIL COMING FROM THE TRAP PRIOR TO THE TRAP DOOR BEING CLOSED. THE CREW WAS NOT ABLE TO FULLY CLOSE THE TRAP DOOR WHILE THE PRODUCT WAS BEING RELEASED. THE CUSHING CONTROL CENTER WAS CONTACTED AT 17:49 CDT TO ISOLATE THE TRAP. ALL CRUDE OIL WAS CONTAINED ON-SITE WITHIN THE TANK BERM AREA AND CLEAN-UP WAS COMPLETED ON MAY 18, 2017. REMEDIATION CONSISTED OF REMOVAL AND REPLACEMENT OF THE TEMPORARY VALVE. THE TANK LINE AND TANK WERE PLACED BACK IN SERVICE ON MAY 19, 2017. APPROPRIATE NOTIFICATIONS WERE MADE WITH THE ORIGINAL CALL TO THE NRC AT 19:08 CDT (NCR #1178607) AND THE 48-HOUR FOLLOW-UP ON MAY 19, 2017 AT 08:43 CDT (NRC# 1178745). IN ADDITION, THE OKLAHOMA CORPORATION COMMISSION (OCC) WAS NOTIFIED ON MAY 18, 2017 AT 10:08 CDT (#18517OGDO10239).

YES

NO

Yes

35.952679

-96.75178

20170195

2/1/2018

PHMSA

96

5/16/2017

SUNOCO PIPELINE L.P.

OK

CRUDE OIL

5

422445.4842

0

0

EXCAVATION DAMAGE

ON 5/16/2017 AT APPROXIMATELY 9AM COUNTY WORKER WAS GRADING THE DITCH ON CR 2280 AND STRUCK THE BARNSDALL 8 PIPELINE. THE PIPELINE WAS DOWN DUE TO NORMAL SCHEDULING AT THE TIME OF THE ACCIDENT. THE PIPELINE MARKER WITH EMERGENCY PHONE NUMBER WAS CLEARLY VISIBLE AT THE ACCIDENT SITE AND THE GRADER OPERATOR NOTIFIED THE CONTROL CENTER AFTER STRIKING THE LINE. THE SEGMENT WAS IMMEDIATELY ISOLATED WITH REMOTELY CONTROLLED VALVES BY THE CONTROL CENTER AND SUBSEQUENTLY ISOLATED WITH MANUAL VALVES BY COMPANY PERSONNEL AFTER ARRIVING ONSITE AT APPROXIMATELY 10AM. NRC WAS NOTIFIED ON 5/16/17 AT 10:50 (REPORT NO. 1178447). EXCAVATION OF THE LINE SEGMENT REVEALED A 4 X 1/2 PUNCTURE ON THE PIPE AND A PLIDCO CLAMP WAS INSTALLED. THE AFFECTED PIPING HAS SINCE BEEN REPLACED AND LOWERED TO 48. REQUIRED 48HR REVISION NRC REPORT FILED ON 5/18/17 AT 10:01 (REPORT NO. 1178640). THE MOP OF THE SYSTEM IS 750 PSIG HOWEVER THE CURRENT OPERATING LIMIT (COL) OF THE SYSTEM IS 300 PSIG ESTABLISHED TO PROTECT THE PUMP AT BARNSDALL. REMEDIATION OF THE AFFECTED SOIL WILL CONTINUE HOWEVER NO SIGNIFICANT CHANGES TO ENVIRONMENTAL COSTS ARE EXPECTED.

YES

NO

Yes

36.51914

-96.15205

20170186

2/1/2018

PHMSA

97

5/14/2017

WEST SHORE PIPELINE CO

IL

CRUDE OIL

0

265403.8316

0

0

1954

MATERIAL FAILURE OF PIPE OR WELD

THE PIPELINE WAS SHUT DOWN DUE TO AN OVERAGE ON THE PIPE. DURING A ROUTINE WALKING OF THE PIPELINE A STAIN WAS FOUND OVER THE LINE. ALL REQUIRED INTERNAL AND EXTERNAL NOTIFICATIONS WERE MADE. THE PIPELINE WAS EXCAVATED AND A CRACK WAS FOUND. A B-SLEEVE WAS INSTALLED ONE THE PIPE. ALL CONTAMINATED SOIL WAS REMOVED. THE INVESTIGATION IS ONGOING.

YES

NO

Yes

41.61482

-88.05111

20170190

2/1/2018

PHMSA

98

5/13/2017

ONEOK NGL PIPELINE, LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

8.45

1498.207822

0

0

2016

EQUIPMENT FAILURE

AT APPROXIMATELY 22:20 ON 5/13/2017, ONEOK TULSA CONTROL RECEIVED A PRIORITY 1 STATION LOCK OUT ALARM DUE TO GAS DETECT AT ONEOK'S ENTERPRISE EAST DELIVERY. ONEOK PERSONNEL WERE IMMEDIATELY DISPATCHED TO THE LOCATION. UPON ARRIVAL ONEOK PERSONNEL BEGAN ISOLATING THE LEAK ON THE ONEOK 246A METER AND BLOWING DOWN THE METER THROUGH THE ENTERPRISE EAST FLARE SYSTEM. ONCE PRODUCT HAD BEEN REMOVED FROM THE METER, IT WAS DETERMINED _" PIPE NIPPLE, ON THE THERMAL RELIEF LINE, FOR THE INLET OF THE METER, HAD DEVELOPED A CRACK AND FAILED, CAUSING THE RELEASE. ONEOK'S INVESTIGATION DETERMINED A _" CHECK VALVE ON THE THERMAL PIPING, HAD FAILED IN THE OPEN POSITION, ALLOWING, HIGH RATES OF PRODUCT TO FLOW THROUGH THE _" PIPING. ONEOK REPLACED THE _" PIPE NIPPLE ALONG WITH THE CHECK VALVE ON THE THERMAL PIPING. ONEOK IS IT THE PROCESS OF REPLACING CHECK VALVES LOCATED IN SIMILAR OPERATIONS, TO PREVENT FUTURE FAILURES.

A WELL LOCATED IN THE COLONIAL MANIFOLD AREA HAD GAS COLLECTING AT THE BOTTOM OF IT. A SEARCH FOR THE SOURCE INCLUDED ISOLATING A COLONIAL GAS OUTBOUND PUMP. THE PUMP WAS N2 TESTED AND FAILED THE TEST AND WAS IMMEDIATELY SHUT DOWN. THE PUMP WAS CLEARED AND ENTRY WAS MADE TO FIND THE SOURCE OF THE LEAK. A CRACK IN THE PUMP CAN WAS DISCOVERED AND REPAIRED NEAR THE SUCTION OF THE PUMP CAN. SETTLEMENT CAUSED THE CRACK AND THE PUMP CAN WAS HYDRO TESTED TO ENSURE ITS INTEGRITY, WHICH IT PASSED.

YES

NO

Yes

29.433813

-95.12012

20170182

2/1/2018

PHMSA

100

5/11/2017

PHILLIPS 66 PIPELINE LLC

TX

Highly Volatile Liquid (such as ethane, butane, propane)

0.32

101637.4362

0

0

1952

OTHER INCIDENT CAUSE

ON MAY 11, 2017 AT APPROXIMATELY 1:10 PM (CENTRAL TIME), MAINTENANCE CREWS HAD EXCAVATED A HALF SOLE REPAIR TO PERFORM AN ENHANCED INTEGRITY EVALUATION ON MX-30 AT MP 55.8. ONCE THE DITCH WAS OPENED, THE CREW NOTICED A SMELL OF NGL, SO THEY DID A SOAP TEST ON THE PIPELINE AND FOUND THE LINE WEEPING ABOUT 3" UPSTREAM OF THE HALF SOLE. THE CREW CLEARED OUT OF THE EXCAVATION, AND THE PIPELINE WAS IMMEDIATELY SHUTDOWN. PLANS WERE MADE AND EXECUTED TO DE-PRESSURE THE LINE AND REPLACE THE SECTION OF THE PIPELINE WHICH WAS WEEPING ALONG WITH THE HALF SOLE REPAIR WHICH WAS BEING EVALUATED. THE SECTION OF PIPE WHICH WAS REMOVED HAS BEEN SEND TO THE P66 LAB IN BARTLESVILLE, OK FOR ANALYSIS. TO DATE, THE CAUSE OF THE LEAK HAS NOT BEEN DETERMINED. ONCE THE ANALYSIS IS COMPLETE, THIS REPORT WILL BE UPDATED AND FINALIZED.

YES

NO

Yes

31.82593

-101.78906

20170191

2/1/2018

PHMSA

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